Homework: (answer on a separate sheet of paper, restate the Qs in your answers)

1. How do the electric charges of alpha, beta and gamma rays differ from one another?

2. How are the strong nuclear force and the electric force different from one another?

3. How many protons and neutrons are there in: H₁, H₂, H₃

4. How many protons and neutrons are there in: Fe₅₈, Fe₅₉, Fe₆₀

5. When thorium, atomic number 90, decays by emitting an alpha particle, what is the atomic number of the resulting nucleus?

6. What change in atomic number occurs when a nucleus emits an alpha particle? A beta particle?

7. What is the long range fate of all the uranium that exists in the world today?

8. Is it possible for a hydrogen nucleus to emit an alpha particle? Defend your answer.

9. Which type of radiation - alpha, beta, or gamma - predominates in the interior of an airplane? Why?

10. When the isotope bismuth-213 emits an alpha particle, what new element results? What new element results if it instead emits a beta particle?