379,863 views
1 vote
1 vote
The half-life of a radioactive kind of praseodymium is 17 minutes. If you start with 56 grams of it, how much will be left after 34 minutes?

grams

User Panagdu
by
2.5k points

1 Answer

5 votes
5 votes

Answer:

14 gm

Explanation:

34 minutes is TWO half lives 1/2 * 1/2 = 1/4 will be left

1/4 * 56 = 14 gm

User Jeff Escalante
by
3.2k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.