1. Just after an alpha particle leaves the nucleus, would you expect it to speed up? Defend your answer. 2. A pair of protons in an atomic nucleus repel each other, but they are also attracted to each...

1. Just after an alpha particle leaves the nucleus, would you expect it to speed up? Defend your answer.

2. A pair of protons in an atomic nucleus repel each other, but they are also attracted to each other. Explain.

3. Why do different isotopes of the same element have the same chemical properties?