Practice Atomic Structure (1) - Atoms and Nuclei

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10 questions

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6 sample questions

Question 1.
What did Rutherford’s experiment conclude about the structure of the atom?
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Think about what happened to the alpha particles.
Question 2.
Define the term 'nucleus'.
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What are the components found at the atom's center?
3Question 3.
What did Rutherford conclude about the nucleus of the atom?
- It is mostly empty space
- It contains only electrons
- It is positively charged
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Think about what happened to the alpha particles in his experiment.
4Question 4.
Bohr’s model states that electrons can...
- True
- False
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Consider how energy is absorbed or emitted in his model.
Question 5.
Consider a radioactive substance with a half-life of 5 years. If you start with 80 grams, how much remains after 20 years?
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Count the number of half-lives in the 20-year span.
Question 6.
Using Bohr's model, if an electron jumps from the n=2 to n=1 orbit in hydrogen, what energy is released?
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Remember to calculate the energies of both orbits first.

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