219k views
4 votes
The half-life of chromium-51 is 28 days. If a sample contained 510 grams, how much chromium would remain after 1 year?

User Zayenz
by
5.8k points

1 Answer

2 votes

Answer:

N = 365 / 28 = 13 half-lives in one year

(1/2)^13 = .000122 fraction remaining in one year

510 * .000122 = .062 grams

User Lightsaber
by
4.3k points