Unit 47: Alpha & Beta Decay
Practice Problems
Note: problem difficulty is ranked using a star system.
(*) One-star problems are fundamental to the unit, and can be done relatively quickly. Use these problems to introduce yourself to the material.
(**) Two-star problems are more difficult, and require an understanding of one or two key concepts. Use these problems to test your understanding of the material.
(***) Three-star problems are the most difficult, and require some creative thinking in addition to a deep familiarity with multiple key concepts. Use these problems to challenge yourself; if you can complete one of these, you’re on your way to mastering the material.
*Q47.1) How many protons and neutrons are in the following nuclei? You may want to reference a periodic table.
a) ⁴He
b) ¹⁴C
c) ²³⁸U
d) ²³⁰Th
**Q47.2) Fill in the blanks in the following nuclear decay equations:
a) ¹⁴C → ¹⁴N + ? + ?
b) ²³⁸U → ? + ⁴α
c) ? → ¹⁰B + ⁺β + ν
***Q47.3) Consider the isotope of Oxygen ¹⁴O. What type of decay will it undergo, and what will be its decay products?