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Questions and Answers
What was one of the major challenges for scientists at the end of the 19th century?
What was one of the major challenges for scientists at the end of the 19th century?
- Explaining the conduct of electricity by different substances
- Identifying the existence of sub-atomic particles
- Revealing the structure of the atom (correct)
- Elucidating the important properties of matter
Which fundamental building blocks of matter were discussed in Chapter 3?
Which fundamental building blocks of matter were discussed in Chapter 3?
- Sub-atomic particles
- Electrons and positrons
- Atoms and molecules (correct)
- Protons and neutrons
What was one of the first indications that atoms are not indivisible?
What was one of the first indications that atoms are not indivisible?
- Observing the attraction of small pieces of paper by a comb
- Studying static electricity (correct)
- Rubbing a glass rod with a silk cloth
- Bringing a rod near an inflated balloon
What is the main focus of Chapter 4?
What is the main focus of Chapter 4?
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What did Dalton propose about the atom?
What did Dalton propose about the atom?
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