Practice Summary Of Key Concepts (4) - Unit 2: Atomic Structure

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9 questions

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6 sample questions

Question 1.
What are the three primary subatomic particles?
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Think about the charges of the particles.
Question 2.
Define what an isotope is in simple terms.
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Consider the number of protons in an atom.
3Question 3.
What defines an isotope?
- Same number of protons, different neutrons
- Different number of protons
- Same number of neutrons, different electrons
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Focus on the number of protons.
4Question 4.
True or False: Electrons are found in the nucleus of an atom.
- True
- False
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Consider the location of protons and electrons.
Question 5.
An unknown element has an atomic number of 15 and a mass number of 31. Determine the number of neutrons in this element.
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Use the relationship between mass number and atomic number.
Question 6.
Explain how the quantum mechanical model of the atom improves upon the Bohr model for multi-electron atoms.
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Consider limitations of circular orbits in the Bohr model.

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