The half life of a radioactive kind of cesium is 30 years. How much will be left after 120 years, if you start with 960 grams of it

Question

asked Aug 1, 2022 77.4k views

1 Answer

Burglarhobbit · Answer 1 · 2022-08-06T03:46:21+0000

Answer:

60 grams

Explanation:

120 years / half-life of 30 years = it will grow half the size 4 times

960 * 1/2 ^ 4 = 960 * 1/2 * 1/2 * 1/2 * 1/2 = 60 grams