Practice Discovery Of Sub-atomic Particles (2.1) - Structure of Atom

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6 sample questions

Question 1.
What are the three main subatomic particles?
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Think about the particles found in an atom.
Question 2.
Who discovered the electron?
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He used cathode rays in his experiments.
3Question 3.
What is the charge of an electron?
- Positive
- Negative
- Neutral
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Think about the charge interactions in the atom.
4Question 4.
True or False: Protons are neutral particles.
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Remember the role of protons in the nucleus.
Question 5.
Calculate the charge of one mole of electrons.
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Use Avogadro's number to scale up the charge of a single electron.
Question 6.
Discuss the implications of Chadwick's discovery of the neutron on the atomic model.
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Contemplate how this affects an atom's overall charge.

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