5 types of atomic models grade 8
1. 5 types of atomic models grade 8
Answer:
Dalton's Atomic Model: This model was proposed by John Dalton in the early 1800s. It suggested that atoms were solid, indivisible particles with no internal structure.
Thomson's Atomic Model: This model was proposed by J.J. Thomson in 1897. It suggested that atoms were composed of smaller subatomic particles, specifically negatively charged electrons embedded in a positively charged sphere.
Rutherford's Atomic Model: This model was proposed by Ernest Rutherford in 1911. It suggested that atoms have a central, positively charged nucleus, around which negatively charged electrons orbit.
Bohr's Atomic Model: This model was proposed by Niels Bohr in 1913. It suggested that electrons orbit the nucleus in specific, quantized energy levels, with the energy of each level corresponding to a specific distance from the nucleus.
Quantum Mechanical Atomic Model: This model, also known as the wave-mechanical model or the electron cloud model, was developed in the 1920s and 1930s. It suggests that electrons do not orbit the nucleus in a classical sense, but rather exist as a probability distribution, or electron cloud, around the nucleus. This model is based on the principles of quantum mechanics.
2. How would you explain particles in an atom to the incoming Grade 8?
The kinetic theory of matter (particle theory) says that all matter consists of many, very small particles which are constantly moving or in a continual state of motion. The particles might be atoms, molecules or ions.
sana makatulong xoxo:)
3. Grade 8 science what sub-atomic parcle are oppositely changed
Answer:
ELECTRON
The nucleus contains two types of subatomic particles, protons and neutrons. The protons have a positive electrical charge and the neutrons have no electrical charge. A third type of subatomic particle, electrons, move around the nucleus. The electrons have a negative electrical charge.
Explanation:
PABRAINLIEST
Answer:
The nucleus contains two types of subatomic particles, protons and neutrons. The protons have a positive electrical charge and the neutrons have no electrical charge. A third type of subatomic particle, electrons, move around the nucleus. The electrons have a negative electrical charge.
Explanation:
you're welcome
4. Activity 1. Guess who?Directions:Do you still member the discussions during your grade 8 about atomicstructures? Arrange the jumbled letters to reveal the scientist who created the atomicmodel and identify the model of the atom. Write your answers on the space prandedOrbitNucleusElectronscontent/uploads/staf 1989/2017/06/1393085913hapurout be.pngsource: https://imgur.com/ukiXf8NRETES HERDRFOUTR meaning of this arrage this twoSE PJHO OHJN OMTSOHNModel:Model:Were you able to arrange the jumbled letters?What are the atomic models portrayed on the imaxe above?Try to answer the succeeding activities to further your knowledge of the atomby describing how electrons behave inside the atom.
Answer: ernest rutherford/model ang atom
Joseph john thomson/plum pudding model
Explanation:
5. a card is drawn from a standard deck of 52 cards. what is the probability that the card is an ace given that it is a heart1212121212212121212Directions Encircle the letter of the correct ans answer. 1. What do you call the process of removing lint and rough edg a sketching b. smoothening 2. The grade six pupils were assigned to carve wood. What tool they to carve wood? a. chisel b. hammer a outlining b 3. This is a process of applying matenals like paint, varnish, and colon improve the appearance of the project. smoothening c. shading d. caring 4. It is a drawing in which only the contours of a product are seen, thus emphasizing the shape of a design a putlining bemothering a. Improves the quality of the product b. It can increase ale 7. It is a guide in doing a project a sketch b. profit cscrewdrivers d chainsaw 5. How would you determine the bamboo is property processed on making a project? a. It was properly processed when the bamboo is well polished and cleaned b. It was properly processed the bamboo has sharp edges c. It was property processed the bamboo has its original co the bamboo is cut into ocen d. It was property processe 6. The following statements are the importance of enhancing/decorating the products, except one? a report b. questionnaire c shading d. finishing b c. shading d. finishing sunshine 8 It is the process of questioning selected people to obtain data about a service, product or process. c. It can waste your time. d. It can it contains what is an atom? who are the three scientist that is in atom model solid sphere model plum pudding model nuclear model atomic model
The probability that the card is an ace given that it is a heart is 1/13.
1. Smoothening
2. Chisel
3. Finishing
4. Outlining
5. It was properly processed when the bamboo is well polished and cleaned
6. Report
7. Sketch
8. Questionnaire
An atom is the basic unit of matter that consists of a nucleus of positively charged protons and neutrally charged neutrons, surrounded by negatively charged electrons orbiting in shells around the nucleus.
The three scientists associated with the development of the atom model are:
1. John Dalton, who proposed the first atomic theory in the early 19th century, suggesting that atoms are indivisible and that each element is made up of atoms that are identical in size, mass, and chemical properties.
2. J.J. Thomson, who discovered the electron in 1897 and proposed the “plum pudding” model of the atom, in which the electrons are embedded in a positively charged sphere.
3. Ernest Rutherford, who conducted the gold foil experiment in 1911 and discovered that most of the mass of an atom is concentrated in a small, dense nucleus, leading to the development of the nuclear model of the atom.
6. Learning Task No. 6: Choose the letter of the best answer. Write your answers on the space before the number. (10points) 1. Mixture is A, a chemically combined substance. B. a combination of elements to make a new substance. C. a combination of substances where new substances are formed through a reaction. D. a combination of substances in which the atoms of the substance do not chemically combine 2. Mixtures can be classified into 2 types, homogeneous and heterogeneous. They are different because A. Heterogeneous has 2 substances while homogenous has 3 or more substances. B. Homogeneous looks the same throughout, with heterogeneous you can see the different parts. C. Heterogeneous looks the same throughout, with homogeneous you can see the different parts D. They are the same, just different names 3. Which of these is a pure substance? A. bread B. table salt C. garden soil D. sea water 4. What is the simplest form that cannot be broken down to anything simpler? A. element B. solution C. compound D. colloids 5. Which of the following is a homogeneous mixture? A. oil and water C. halo-halo B. sand and water D. air 6. This type of mixture contains two or more substances that are visibly distinguishable A. homogeneous C. solution B. heterogeneous D. suspension 7. A substance which consists of two or more elements which have been combined chemically is called A. element B. compound C. mixture D. atom 8. Select the term that describes the smallest particle of a compound that can exist and still retain the characteristic chemical properties of a substance A. molecule B. atom C. electron D. nucleusa help po Grade 7 yung 9 & 10 po na sa pic
Answer:
1.A 2.D 3.C 4.A 5.A 6.B 7.C 8.D 9.C 10.A
Explanation:
7. Do you still remember the discussions during your grade 8 about atomic structures?
Answer:
Yes, I have.
Explanation:
Intro:
Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).
8. Subject: ScienceGrade 8pasagot pleaseChoose the letter of the best answer. Write the chosen letter on a separate sheet of paper.1. This state of matter has a definite shape and volume with particles closely packed together with little movement. This is a:A. liquid C. gasB. solid D. plasma2. When you bring two drops of water near each other and allow them to touch, why do they combine immediately and become one drop?A. water molecules are made of atomsB. water molecules are attracted to each otherC. water molecules are magneticD. water is a liquid3. What is the arrangement of particles in a liquid?A. the particles of a liquid are close to one anotherB. the particles of a liquid are spread out C. the particles of a liquid vibrate but do not move past one anotherD. a liquid has mass and takes up space4. What is the arrangement of particles in a solid?A. the particles of a solid are attracted to one anotherB. the particles of a solid are able to move past one anotherC. the particles of a solid vibrate but do not move past one another D. a solid has mass and takes up space5. Which of the following statements is true? A. Liquids have a definite volume but no definite shape. B. Gases have volume but they do not have mass. C. Liquids are made up of particles that are widely spaced. D. Solids are made up of particles that do not move.
Choose the letter of the best answer.
1. This state of matter has a definite shape and volume with particles closely
packed together with little movement. This is a:
A. liquid C. gas
✅B. solid D. plasma
2. When you bring two drops of water near each other and allow them to
touch, why do they combine immediately and become one drop?
A. water molecules are made of atoms
✅B. water molecules are attracted to each other
C. water molecules are magnetic
D. water is a liquid
3. What is the arrangement of particles in a liquid?
✅A. the particles of a liquid are close to one another
B. the particles of a liquid are spread out
C. the particles of a liquid vibrate but do not move past one another
D. a liquid has mass and takes up space
4. What is the arrangement of particles in a solid?
A. the particles of a solid are attracted to one another
B. the particles of a solid are able to move past one another
✅C. the particles of a solid vibrate but do not move past one another
D. a solid has mass and takes up space
5. Which of the following statements is true?
✅A. Liquids have a definite volume but no definite shape.
B. Gases have volume but they do not have mass.
C. Liquids are made up of particles that are widely spaced.
D. Solids are made up of particles that do not move.
#Carryonlearning
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9. Choose the letter of the correct answer 1. Pure substances are classified into elements and compounds. Elements are the simplined form of matter. Which of the following is an element? a) Carbon monoxide b) Gammanium c) Glucose d) Nitrous oxide 2. Which of the following is the simplest form of substance? a) solution b) compound a) element d) mixture 3. When one or more substance is combined it is called a) compound b) element c) mixture d) solution Which of the following statements describes an element? a) It contains only one kind of atom. b) It can be decomposed by ordinary chemical means. c) It is composed of atoms of hvo or more elements that bond together, d) It has unique properties that are different from the properties of its individual elements. 5. Which of the following statements descnbos a compound? a) it contains only one kind of atom b) It can be separated by physical means. c) It cannot be decomposed into simpler types of substances. d) It consists of atoms of hvo or more different elements bond together. 6. Methane is a colorless odonlass gas compound. Given the structure, what elements compose the methane? a) Helium and Carbon b) Helium and Calcium c)Hydrogen and Carbon d) Hydrogen and Calcium 7 A Grade 7 student planned to have an experiment. He prepared the materials namely sodium bicarbonate, hydrogen peroxide iodine and iron. Which of these materials are compounds ? a) Sodium bicarbonate and hydrogen peroxide b) Sodium bicarbonate and iodine c) Hydrogen peroxide and iodine d) Hydrogen peroxide and iron 8 Which of the following is NOT a compound? a) Nonosodium glutamate b) Sodium chloride c) Citric acid a) Krypton 9. What elements made up the compound Carbon dioxide? a) Carbon and Oxide b) Carbon and Oxygen c) Carbon and Hydrogen d) Carbon and Carbon 10. Which of the following statements is true about the illustrations? illustrations I and IV are elements: Illustrations ll and Ill are compounds Illustrations II and III are elements: Mustrations II and IV are compounds. Illustrations I and II are elements: ilustrations III and I are compounds. Illustrations III and IV are elements Mustrations I and II are compounds. 00 11. Salt water is a solution made up of a a) liquid dissolved in a solid. c) liquid dissolved in another liquid. b) solid dissolved in a liquid. d) solid dissolved in another solid. 12. How would you separate a mixture of sand and water? a) by sorting by shape b) by evaporation c) by using a magnet d) by filtering 13. Which of these is the BEST way to separate a mixture of iron nals and plastic paper clips? a) straining b) filtering c) using a magnet d) evaporation d) salt 14 Which of these is a mixture? a) a salad c) bits of iron d) sugar
Answer:
1. B
2. D
3. A
4. C
5. C
6. B
7. Uhm don't know eh
8. C
9. D
10. Don't know either
11. C
12. A
13. B
14. B
Explanation:
Corret me if I'm wrong or something like that
10. Il Directions Choose the letter of your answer and write it on the space provided1. When you combed your hair, some electrons in your hair were transferred to the comb. The combreceived on electric charge. The charge on the comb held the pieces of poper. What kind of electricity isproducedA. Current ElectricityB. Static ElectricityC. Radiant ElectricityD. Solar Electricity2. Electricity can make objects attract some metal objects because of a device calledA. ElectromagnetB. Electric cicuitC. BatteryD. Power switch3. Marissa hasradio battery operated. One time she used her radio but it didn't work. She looks onthe dry cell inside. Why did the radio not working?A. The batteries were placed where like charges are connected.8. The batteries were placed where unike charges are connected.C. The radio is not working because it is old.D. She doesn t know how to operate her radio.4. Which is the connection of battery where atom will produced electricity.A. positive charge connected to positive chargeB. negative to negative charge connected to each otherC. same terminal connected to each otherD. different terminal connected to each other5. Which of the following materials are good conductors of heat and electricityA. eraser pencil.rulerB. plastic rubberwoodC. steel fork, nail, coinD. wood aluminium foil, paper6. When you placed the coin between the wires the bulb lit. When you placed plastic fork, the bulbdid not lit. Why?A. The coin is made of metal that makes it good conductor of electricity.B. Fork is plastic which is also a good conductor of electricity.C. The bulb is not working so it did not fit when fork is placed.D. Coin and plastic fork are both good conductor of electricity.7. What is commonly used to make conduction possible in a circuitA. plastic wire B. copper wireC. barb wireD. rubber8. Your teacher asked you to make a simple circuit as a project. You put a plastic ruler between thewires. What do you think will happen to your circuitsA. The circuit wil lightB. She will get a high grade on her projectC. The circuit will not functionD. She will get a low grade on her project
Answer:
yan lang po
Explanation:
sana po makatulong
11. grade 8 Central trinity school 1. It is the ability to do work Energy work force friction 2. It is the energy released in a chemical reaction. chemical energy heat energy light energy thermal energy 3. It is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases. light energy heat energy sound energy thermal energy 4. It is energy that moves in the form of waves from the sun and other stars. sound energy thermal energy light energy heat energy 5. It is the total energy of the particles in a material. This includes both the potential and the kinetic energy of the particles heat energy light energy thermal energy sound energy 6. It is produced when an object vibrates. light energy thermal energy sound energy electrical energy 7. It is the movement of electrons from one atom to another. light energy thermal energy sound energy electrical energy 8. It comes from nuclear fission and fusion. electrical energy nuclear energy sound energy thermal energy 9.It is also known as energy conversion, is the process of changing energy from one form to another. Energy transformation energy light energy sound energy 10.Energy is the ability to do _______. energy force work gravity
Answer:
ans
1.a
2.c
3.c
4.d
5.b
my ans is all wrong. that why do not copy my ans.
Explanation:
12. WHAT I CAN DORefer to the masses of the subatomic particles in the table below. Subatomic Symbol Charge Location Particle Electron e- negative outside nucleus Proton p+ positive inside nucleus Neutron n⁰ neutral inside nucleus Mass (in gram)9.109 x 10-²⁸1.672 x 10-²⁴1.675 x 10-²⁴1. Arrange the subatomic particles in increasing mass. 2. Which subatomic particle is the lightest? 3. Which subatomic particle is the heaviest? 4. Which subatomic particles have almost the same mass? Which subatomic particle/s make/s up most of the mass of the atom?HEllo I'm Christian Gule AmotoI'm Grade 8 Generosity in Tambongan National High School
Answer:
what you can do
Explanation:
you need to do your talent but nice talent bro or sis?
13. Instructions: Write all your answers in the Zip Grade answer sheet by shading the letter that corresponds your answer. Use pencil al a T 1. Compounds have chemical formulas while elements have chemical symbols. Which of the following groups are considered to be compounds? A H2, Fe & Naci B. NaHCO3, He, & NaOH C. CaCl2, H20, & CaCO3 D. AI, C6H1206, & Zn 2. Which of the following is NOT an example of a compound? A. Calcium carbonate B. Oxygen gas C. Methane gas D. Table sugar 3. Which of the following ways can separate compounds into its components? A. Chemical means B. Mechanical separation C. Filtration D. Physical methods 4. Which of the following statements is TRUE? A. Compounds are more complex than elements. B. Compounds can be broken down by physical means. C. Compound is composed of more than two different elements. D. Ferric chloride cannot be broken down into simpler substances. 5. Which of the following is the best way Which of the following is the best way of differentiating elements and compounds? A. Elements and compounds can be separated chemically. B. Elements are physically combined while compounds are chemically combined. C. Elements are simple substances while compounds are complex substances. D. Elements are made of only one kind of atom while compounds are made up of two or more kinds of atoms 6. Which of the following choices below does NOT belong to the group? A Aluminum B. Copper C. Shampoo D. Table sugar 7. Which of the following substances does NOT belong to the group? A. Baking soda B. Carbohydrates C. Magnesium D.MSG 8. Which of the following substances is classified as a compound? A. Hydrogen gas B. Ozone C. Sulfur D. Water 9. Which of the following terms most accurately describes carbon dioxide? A. Compound B. Element C. Mixture D. Solution 10. Compounds are composed of two or more kinds of elements. Which of the following group of compounds is INCORRECT? A. MSG, baking powder, soy sauce C. Sugar, protein, carbohydrates S S -C
Answer:
1.d
2.d
3.b
4.c
5.d
6.c
7.a
8.d
9.a
10.c
Explanation:
sana makatulong base lng kc yan sa mga past lessons n natutunan ko
14. 8. Boron, carbon, nitrogen, and oxygen are examples of A. Compounds B. Elements C. Ingredients D. Nutrition facts 9. Carbon dioxide, sodium chloride, sugar and salt are examples of A. Compounds B. Elements C. Ingredients D. Nutrition facts 10. Oxygen and iron are elements (I). Protein and sugar are elements too (II). A. Both statements I and II are TRUE. B. Both statements I and II are FALSE. C. Statement I is FALSE while statement II is TRUE. D. Statement I is TRUE while statement II is FALSE. 11. Compounds is composed of one atom(I). Elements is a single atom substance(II). A. Both statements I and II are TRUE. B. Both statements I and II are FALSE, C. Statement I is FALSE while statement II is TRUE. D. Statement I is TRUE while statement II is FALSE. 12. Airon Jay is fond of eating cereal drink even if he is already in grade 7. What compounds do Airon Jay has taken? I. Iron pyrophosphate II. Calcium chloride III. Sodium bicarbonate IV. Zinc sulfate A. I and II only B. I and III only C. II and III only D. I and IV only 13. Danica was assigned by her teacher to match compound with its consti elements. Which do you think of her matched pair are correct? I. Calcium chloride : calcium, chlorine II. Water : nitrogen, oxygen III. Carbon dioxide; carbon, oxygen IV. Salt: sodium, magnesium A. I and II only B. I and III only C. II and III only D. I and IV only
Answer:
8. B
9. A
10. A
11. D
12. D
13. A
15. clessee, Meena சOnion Pulama paan கhemmanyuae aanmathamaa 36 DA The population aasagane 10AANA persons reas Manila shan) anomaleathe (50) One hundreameram mersapare. FAT number of persons who do not read there we newepages A 140 B 150 3 The Grade 7 students of Webini High School play allows எboth fightion அபes per vishal. 126erie - toastatball ans4utanepierongemes, Vinee பாங்கர் orads/usements whoam A 107 C 172 5. 126 D. 146 group of 30 students went on a wee planting ev. Twelve Atom have planeshan Mahogany areas, anneaplerian Msivogermon many students have plented Norts only 8 C. 12 D. 16 4 A 8. 10
Answer:
hindi ko po maintindihan
Step-by-step explanation:
ty SA POINTS PERO PAKIAYOS
16. 8. Boron, carbon, nitrogen, and oxygen are examples ofA. CompoundsB. ElementsC. IngredientsD, Nutrition facts9. Carbon dioxide, sodium chloride, sugar and salt are examples ofA. CompoundsB. ElementsC. IngredientsD. Nutrition facts10. Oxygen and iron are elements (1). Protein and sugar are elements too (II).A. Both statements I and Il a re TRUE.B. Both statements I and II are FALSE.C. Statement Iis FALSE while statement II is TRUE.D. Statement I is TRUE while statement Il is FALSE.11. Compounds is composed of one atom(I). Elements is a single atom substanceA. Both statements I and Il a re TRUE.B, Both statements I and II are FALSE.C. Statement I is FALSE while statement II is TRUE.D. Statement lis TRUE while statement Il is FALSE.12. Airon Jay is fond of eating cereal drink even if he is already in grade 7. WHcompounds do Airon Jay has taken?I. Iron pyrophosphatePa answer ng tama po bigyan ko kayu breyn
Answer:
8.a
9.c
10.a
11.b
12.c
Explanation:
sana maka tulong
17. 1. The noble or inert gases are lined up in thecolumn of the periodic table.A. Sixteenth B. Seventeenth C. Eighteenth D. Nineteenth2. Which of the following statement are TRUE?A. The first 94 elements in Periodic Table occur naturallyB. Elements 95 to 118 have only been synthesized in laboratory or nuclearreactorsC. Alkali Metals occupy the left-most column of the Periodic TableD. All of the above3. Which of the following statements are TRUE about d-Block Elements?A. These are the elements of Group 3 to 12 in the center of the Periodic TableB. They are all metalsC. They are all known as "Transition Elements"D. All are TRUE4. Which of the following statements are TRUE about f-Block Elements?A. These are the elements from two rows at the bottom of the Periodic TableB. Lanthanoids & Actinoids belong to f-Block ElementsC. They are all known as "Inner-Transition Elements"D. All are TRUED. Grades5. The columns in the Periodic Table is calledA. ClassesB. GroupsC DivisionsD. Grades6. The abi, ofan atom in a molecule to attract electrons is best quantified by theA. paramagnetismB. diamagnetismC. electronegativityD. first ionization potentialfrom7. Electronegativity from left to right within a period andtop to bottom with a group.A. decreases, increasesC. increases, decreasesB. increases, increasesD. stays the same, increases8. As you move down a column of the periodic table (top to bottom), which of thefollowing is generally TRUE?A. Atomic radius increaseC. lonization energy increasesB. Electron Affinity increases D. Electronegativity increases9. An element belongs to 3rd period and group-13 of the periodic table. Which ofthe following properties will be shown by the element?A. Good conductor of electricityC. Liquid, metallicB. Solid, metallicD. Solid, non-metallic10. The element with atomic number 57 belongs toA. s-Block B. p-BlockC. d-BlockD. f-Block11. The elements with atomic number 35, 53 and 85 are allA. halogens B. noble gases C. heavy metals D. light metals12. Which of the following statements is NOT a correct statement about the trendswhen going from left to right across the periods of the periodic table?A. The elements become less metallic in natureB. The number of valence electrons increasesC. The atoms lose their electrons more easilyD. The oxides become more acidic13. Which of the following element would lose an electron eas!!?A. MgB. NaC. KD. Ca14. Which of the following has the highest electronegativity value?A. Mercury B. FluorineC. ZincD. Cesium15. As you move from the top to the bottom of the periodic table:A. ionization energy increase and electronegativity increasesB. ionization energy decreases and electronegativity increasesC. jonization energy increases and electronegativity decreasesD. ionization energy decreases and electronegativity decreases
Explanation:
ABCDABBACABDAABHOPE ITS HELP PO
18. (SIDROJONALHIGHDepEDuezonPADE SGOS.cusRepublic of the PhilippinesDepartment of EducationRegion IV-A CALABARZONDivision of QuezonSAN ISIDRO NATIONAL HIGH SCHOOLPadre Burgos, QuezonLEARNING ACTIVITY SHEETS # 1SCIENCE 9DATE:NAME RYZA G. DELGADOGRADE &SEC:_ G-9 Charity. Choose the letter correct answer on the box below. Write the answer on the space provided.ATOM1. The smallest particle of an element.2. It is the negatively charges of an atom.3. It refers to the positively charges of an atom.4. The central part of an atom where the neutron and proton can be found.5. The uncharged particle found on the nucleus of an atom.6.The sum of no. Of protons and no. Of neutrons.7. It is equal to the number of electrons.8. It is the arrangement of electrons in an atom.9. Elements which are good conductor of heat and electricity.10. Elements which are poor conductor of heat and electricity.
san yung tanong di ko alm yan
19. Name: Grade/Section: Scientists never stop investigating things. The history of the study of the atomic nature of matter illustrates the thinking process that goes on in the philosophers' and scientists' heads. Some early Greek philosophers have played pivotal roles concerning the atomic structure. Objectives: To construct a timeline of the development of atom Materials: copy of PT3, books, journals, (research from internet: optional) Procedure: 1. Research the different scientists/philosophers that contribute in the development of an atom. You can use books, journal, or you may research from internet (optional) to gather data. 2. Write the date of the discovery, name of the scientists/philosophers and their discoveries in the development of the atom. 3rd Quarter PERFORMANCE TASK No. 3 Timeline of the Development of Atom 3. Draw or cut pictures of the different scientist that contribute in the development of the atom 4. Draw also the atomic model they discovered 5. Complete the table below. DATE NAME OF SCIENTISTS/ PHILOSOPHERS 1. ARISTOTLE 2. DEMOCRITUS 3. JOHN DALTON 4. JOSEPH JOHN DALTON SON 5. EARNEST RUTHERFORD 6. NEIL BOHR 7. LOUIS DE BROGLIE 8. WERNER HEISENBERG 9. ERWIN SCHRODINGER 10. JAMES CHADWICK RUBRICS: PICTURE 15 Show all accurate content of the concept 10 Accuracy Presentation All concepts are logically presented and consistent ish the task before the time Date: Grade: DISCOVERY/CONTRIBUTION IN THE DEVELOPMENT OF ATOM Criteria 12 Show most accurate content of the concept The concepts are logically presented and consistent Finish the task on the allotted time ATOMIC MODEL 10 Show some accurate content of the concept Not all concepts are logically presented and consistent Did not finish the task on the allotted time Add Tags + How does the discovery of the atom important to human, animals, plants, and environment? Pls help
The discovery of the atom is crucial to our understanding of the world around us and has led to numerous technological advancements. The study of atoms helps us understand the properties of matter, including its behavior, reactivity, and physical properties. This knowledge has important applications in fields such as medicine, agriculture, energy, and environmental science.
For example, our understanding of atomic structure has allowed us to develop technologies such as nuclear power and medical imaging, which have revolutionized energy production and medical diagnosis. The study of atoms and their behavior also plays a crucial role in agriculture, as scientists use this knowledge to develop better fertilizers, pesticides, and crop varieties.
Furthermore, understanding the behavior of atoms is crucial in environmental science, as it allows us to track the movement of pollutants in the environment and develop strategies to minimize their impact. This knowledge also helps us better understand climate change and its potential effects on our planet.
In summary, the discovery of the atom has led to numerous technological advancements and has applications in a wide range of fields, including medicine, agriculture, energy, and environmental science.
20. Write the electron configuration of each of the following atoms.1. Li-32. Sr-383. SC-214. 0-85. Ar-18Science Grade 9
Answer:
ELECTRON CONFIGURATION[tex]\bold\green{\boxed{ANSWER:}}[/tex]1. Li-3 = LITHIUM
[tex]\boxed{1s {}^{2} 2s {}^{2}}[/tex]2. Sr-38 = STRONTIUM
[tex]\boxed{1s {}^{2} 2s {}^{2} 2p {}^{6} 3s {}^{2} 3p {}^{6} 4s {}^{2} 3d {}^{10}4p {}^{6} 5s {}^{2}}[/tex]3. SC-21 = SCANDIUM
[tex]\boxed{1s {}^{2} 2s {}^{2} 2p {}^{6} 3s {}^{2} 3p {}^{6} 4s {}^{2} 3d {}^{1}}[/tex]4. 0-8 = OXYGEN
[tex]\boxed{1s {}^{2} 2s {}^{2} 2p {}^{4}}[/tex]5. Ar-18 = ARGON
[tex]\boxed{1s {}^{2} 2s {}^{2} 2p {}^{6} 3s {}^{2} 3p {}^{6}}[/tex]⊱┈──────────────────────┈⊰
(^_^)#CarryOnLearning⊱┈──────────────────────┈⊰
21. 8. Boron, carbon, nitrogen, and oxygen are examples of A. Compounds B. Elements C. Ingredients D. Nutrition facts Wh 9. Carbon dioxide, sodium chloride, sugar and salt are examples of A. Compounds B. Elements C. Ingredients D. Nutrition facts 10.Oxygen and iron are elements (1). Protein and sugar are elements too (IT). A. Both statements I and II are TRUE. B. Both statements I and II are FALSE. C. Statement lis FALSE while statement Il is TRUE. D. Statement l is TRUE while statement II is FALSE. Ha 11. Compounds is composed of one atom(1). Elements is a single atom substance(II). A. Both statements I and II are TRUE. B. Both statements I and II are FALSE. C. Statement lis FALSE while statement II is TRUE. D. Statement lis TRUE while statement II is FALSE. gen Co ty NA 12. Airon Jay is fond of eating cereal drink even if he is already in grade 7. What compounds do Airon Jay has taken? I. Iron pyrophosphate II. Caicium chloride III. Sodium bicarbonate IV. Zinc sulfate A. I and II only B. I and III only C. II and III only D. I and IV only B. Danica was assigned by her teacher to match compound with its constituent elements. Which do you think of her matched pair are correct? I. Calcium chloride : calcium, chlorine II. Water: nitrogen, oxygen III. Carbon dioxide; carbon, oxygen IV. Salt: sodium, magnesium A. I and II only B. I and III only C. II and III only D. I and IV only
Answer:
8. B
9. A
10. B
11. not sure C.
12.
Explanation:
22. 1. Which atoms have the same mass number? A.B. C. 2. Which atom/s have atomic number of 7? A. B. 3. What is the atomic number of atom B? A. 4. What is the mass number of atom D?A. 5. How many neutrons are there in atom F? A.(GRADE 8 SCIENCE)HELP ME PLS.. KAILANGAN KO NG TAMANG SAGOT.PAKISAGOT PO NG MAAYOS.
Answer:
1.isotops
2.nitrogen
3.5
4.4
5.9
Explanation:
Yan lang alam ko
23. science grade 8 quarter 3 module 3 atoms: inside out
Asaan po ang sasagutan dyan
24. 6. Which of the following uses evaporation to separate the components of the given mixture a. oil and waterb. salt and water c. sand and gravel d. pebbles and sand 7. To make a solute dissolve more quickly in a solvent, which of the following would you do? a. Stir it in cold water. c. Let the solute settle downb. Stir it in warm water. d. Nothing to do with the solute. 8. How will you identify a saturated solution? a. Less solvent than solute. c. Equal amounts of solute and solvent. b. Less solute than solvent. d. Less amount of both solute and solvent. 9. How do you differentiate elements from compounds? a. Elements are single atom substances. b. Compounds are composed of one molecule. c. Compounds are composed of two or more molecules. d. Compounds are composed of two or more compounds. 10. A group of Grade 7 students wants to compare the chemical properties of two samples. They prepared two flasks containing the samples and labeled them Liquid A and Liquid B. They monitored the boiling points of the liquids and found that the boiling points were 100°C for Liquid A and 110°C-112°C℃ for Liquid B. How would you classify the two liquids? a. Liquid A is a pure substance, while Liquid B is a mixture.b.liquid a may be homogenous or heterogeneous but liquid b is notc. liquid a has varying boiling points while liquid b has a fixed boiling pointd. liquids a and b contain two or more atoms that are chemically bonded.
Answer: 6.B 7.B 8.Less solute than solvent 9.A 10.C
Explanation: correct me if im wrong
6. B. salt and water
7. B. Stir it in warm water
8. B. Less solute than solvent
9. A. Elements are single atom substances
10. A. Liquid A is a pure substance, while Liquid B is a mixture.
25. 8. Boron, carbon, nitrogen, and oxygen are examples ofA CompoundsB. ElementsC. IngredientsD. Nutrition facts9 Carbon dioxide, sodium chloride, sugar and salt are examples ofA CompoundsB. ElementsC. IngredientsD. Nutrition facts10. Oxygen and iron are elements (1) Protein and sugar are elements too (II).A. Both statements I and II are TRUE.B. Both statements I and II are FALSE.C. Statement ! is FALSE while statement II is TRUE.D. Statement I is TRUE while statement 11 is FALSE11. Compounds is composed of one atom(!). Elements is a single atom substanA. Both statements I and II are TRUEB. Both statements I and II are FALSE,C. Statement I is FALSE while statement II is TRUE.D. Statement I is TRUE while statement II is FALSE.12. Airon Jay is fond of eating cereal drink even if he is already in grade 7compounds do Airon Jay has taken?1. Iron pyrophosphateII. Calcium chlorideIII. Sodium bicarbonateIV.Zinc sulfateA. I and II onlyB. I and III onlyC. II and III onlyD. I and IV only13. Danica was assigned by her teacher to match compound with its constitelements. Which do you think of her matched pair are correct?1. Calcium chloride : calcium, chlorineII. Water : nitrogen, oxygenIII. Carbon dioxide; carbon, oxygenIV. Salt: sodium, magnesiumA. I and II onlyB. I and III onlyC. II and III onlyD. I and IV only
Answer:
8.b
9.b
10.A
11.c
12.A
13.B.I and III
26. I: MULTIPLE CHOICE TYPEGrade and SectionDate SubmittedDirection: Read each item carefully. Choose the letter of the BEST ANSWER and write it onyour answer sheet.1. Which among the following is an example of matter?C. heatA. smokeB. lightD. none of these2. Which is a non-example of matter?A. fireB. clayC. lightD. human heart3. Of the phases of matter, which has the strongest attractive forces?A solidB. liquidC. gasD. None of these4. One of the microscopic behaviors of matter is its ability of the particles to move. Ranksolid, liquid and gas in order of the particle speed from lowest to highest.A. Solid----Liquid ----GasC. Solid----Gas-------LiquidB. Gas----Liquid----GasD. Liquid ---Gas ---Solid5. Why liquid water takes the shape of its container, but an ice cube does not?A. Because the liquid is the state of matter that has no definite volume and does nottakes the shape of the containerB. Because liquid is the state of matter that has a definite volume but takes the shape ofits containerC. Because liquid is the state of matter that has no definite volume but takes the shapeof its container.D. Because the liquid is the state of matter that has definite volume but does not takesthe shape of its container.6. What term refers to the smaller particles inside an atom?A. Submicroscopic particlesC. SubordinatesB. Subatomic particlesD. Photons7. Which of the following is NOT a subatomic particle?A. ionC. electronB. protonD. neutron8. What subatomic particles are found in the "nucleus" of an atom?A. proton and electronC. proton and neutronB. neutron and electronD. proton and positronHow many protons are there in 200a+2?A. +2B. 40C. 20D.0pakisagut mo plssssss n
Answer:
D, A, A, B, B, B, A, C, A
Explanation:
27. A. ELICITIn Grade 8, you have learned about the atomic models proposed by different scientists. Na mne the scientist belowand describe the atomic model he proposed.ER_ES_RU_ ERF_RD
Answer:ERNEST RUTHERFORD
Explanation:
Rutherford atomic modelPhysicist Ernest Rutherford envisioned the atom as a miniature solar system, with electrons orbiting around a massive nucleus, and as mostly empty space, with the nucleus occupying only a very small part of the atom.#CarryOnLearning28. Surname Grade Section San Juan High School - Mexico, Pampanga Physical Science First Name Activity Quiz 2 How the properties of matter relate to their chemical structure Properties of molecule based on its polarity the blanks. Read the statements in each number and identify what is being described. blank before each number. You may look at the word pool for possible a 1: Water Molecule Polarity and its Properties 1. Refers to the shape and structure of the molecule with important role in dete colour, magnetism, taste, and many other properties. 2. is the process of mixina. meraina, or combining two or more different orbitals of elec 3. A brief way of expressing the number and type of atoms that make up a particular cher ement with its chemical symbol, and writes directly next to it the number of atoms in the molecule c 4. This can be calculated as the sum of the atomic weights of the atoms in any 5. Together, the two electrons that forms the chemical bond. 6. Two electrons that are non-bonding in an atom, without bonding or sharing 7. Electrons are shown as "dots" to represent the valence electrons of an ato between the two atoms. The goal is to obtain the "best" electron configuration. i.e. the d to be satisfied to be stable. To know how it will bond and how many bonds it will fo 8. This model assumes that electron pairs will arrange themselves to minimiz Cher, and the shape of the molecule will form. 9. The net charge of a water molecule is (zero. positive, negative). 10. The density of water is roughly 1 gram per (ml, dl) sit Polar or Non-Polar? (11 to 18) 11. Sugar dissolves in water, it is (Polar, Non-polar)? Water is the solvent, a 12. Salt dissolves in water, it is (Polar. Non-polar)? This homogenous mixtu 13. Sodium chloride, the positive and negative parts of their molecules can d ly amona one another. This molecule is (polar. non-polar)? 14. Vinegar is composed of acetic acid and water, both are (polar or non-polar 15. Honev contains suaar. fructose and alucose, honey can be mixed with wat ously. Honey has (polar, non polar) molecules. 16 Ethanol have both polar and non-polar ends, due to its hydroxyl (OH) grc as hydrogen bonds with other molecules. The ethvl (C2H5) group s non-polar. Ethanol molecule is (polar. non-polar)? Na c 17. After mixing baking soda or Sodium bicarbonate is a weak base: it to sodium and bicarbonate ions in water, making it (polar. non-polar) material. 18. Gasoline and water did not mix, they did not dissolve in one soline and other petroleum are (polar, non-polar) substances. 19. The overall polarity of a molecule. to be a polar or non polar is determined is the weight of a substance for a specific volume. 20. High Surface tension High Specific heat Polar Attract Repel Electronegativity Non-polar 1, 2, 3, 4, 5 Density olecule Polarity of its bonds Structural Formula Charge difference OCTANE, found in distribution of elec
Answer:
paano po yan sasagutan ang gulo kasi
Explanation:
sorry ² po
Answer:
1
Explanation:
dahil formal charge difference octane found in distribution of elec
29. Activity 4: POST TEST Choose the best answer. On the zip grade answer sheet blacken the circles that corresponds to the correct answer 1. It holds that one should refrain from making truth claims and avoid the postulation of final truths. A. Atomism B. Skepticism C. Scholasticism D. Thomism 2. It teaches that the hidden substance in all physical objects consists of different arrangements of atoms and void. A. Atomism B. Skepticism C. Scholasticism D. Thomism 3. It is best known for its application in medieval Christian theology, especially in attempts to reconcile the philosophy of the ancient classical philosophers. A. Atomism B. Skepticism C. Scholasticism D.Thomism 4. It is a Medieval school of philosophy that arose specifically as a legacy of the work and thought of the 13th Century philosopher and theologian St. Thomas Aquinas. A. Atomism B. Skepticism C. Scholasticism D. Thomism 5. It is a movement in philosophy and literature that emphasizes individual existence, freedom, and choice. A. Existentialism B. Humanism C. Kantianism D. Marxism 6. It is a philosophical school based on the writings of the key German Idealist philosopher Immanuel Kant. A. Existentialism B. Humanism C. Kantianism D. Marxism 7. It is a Renaissance movement in philosophy towards a more human-centered (and less religion-centered) approach. A. Existentialism B. Humanism C. Kantianism D. Marxism 8. It is a philosophical, political, and social movement derived from the work of Karl Marx. A. Existentialism B. Humanism C. Kantianism D. Marxism 9. It is a philosophical movement which gathered momentum during the Age of Reason of the 17th Century. A. Existentialism B. Humanism C. Kantianism D. Rationalism 10. It is a philosophical movement during the Age of Enlightenment which emphasizes emotional self-awareness as a necessary pre-condition to improving society and bettering the human condition A. Existentialism B. Humanism C. Romanticism D. Rationalismibebrainliest ko makasagot ng tama
Answer:
1.C2.C3.D4.B5.C6.D7.A8.C9.C10.B30. Ionization energy? A. Argon B. Helium C. Neon EXERCISES 18: Crossword Puzzle: THE PERIODIC TABLE D. Xenon Across: 2. Name for the group 1 metal 4. The metals are the elements in the middle of the periodic table. 5. The_ number is the sun of the proton and neutron 6. gases are considered in active 7. The horizontal row are termed 8. Most elements are 10. Non-metals tend to form ions with charged 6 9 DOWN: 1. The most active non-metals, 2. The name of group 2A metals 3. An element's atomic number is the number of for each atom. 7. Metals tends to form ions with charged 9. The atomic is used to arranged the elements 11. The vertical columns are called or families 10 11 References: Books Josefina Ferriols Pavico et.al. K to 12 Science Grade 8 Learners Material.
Answer:
[tex]\colorbox{pink}{\boxed{\colorbox{lightblue}{\color{pink}{\rm{THE KING OF NONSENSE}}}}}[/tex]
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