Question

Chemistry Environ & Society 1010 Homework 13 Name Answer all questions completely (You can hand it in early or email it, but it will not be accepted late.) DUE: 04-26-19 (2pts) 1. Thorium-232 can undergo fission. For the following theoretical reactions, fill in the missing isotope. Hint: it would be helpful to add the missing atomic numbers to make sure you account for all the protons 232Th + in → (2pts) 2. Plutonium-239 undergoes a decay. Write the nuclear equation for the decay of plutonium-239. (2pts) 3. One problem with the plutonium-239 in nuclear waste is it remains radioactive for a very long time (Table 7.4 in your text). How many years does it take for it to decay to ~3% (132) of the original radiation? Show how you determined this value.

Answer 1

r) 232 150 101 , 90 4-3 232 to 1 t30 0 232 Ll 2- 221 235 94 3 2- 5