Practice Electron (4.4.1) - Atomic Structure

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10 questions

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6 sample questions

Question 1.
What is the charge of an electron?
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Think about the symbols used to denote charge.
Question 2.
Who discovered the electron?
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Remember the key historical figure related to this discovery.
3Question 3.
What is the charge of an electron?
- Positive
- Negative
- Neutral
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Think of the charge associated with protons and neutrons.
4Question 4.
Is it true that electrons are heavier than protons?
- True
- False
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Reflect on the relative sizes of these particles.
Question 5.
A certain element has 9 electrons and 9 protons. What can you say about its chemical behavior and valency?
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Think about its position in the periodic table.
Question 6.
If an atom has an atomic number of 6 and a mass number of 14, how many neutrons does it have and what are the implications for its isotopes?
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Use the mass number formula to find the number of neutrons.

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