388,676 views
27 votes
27 votes
The half life of a radioactive kind of cadmium is 14 years. How much will be left after 28 years, if you start with 72 grams of it?

The half life of a radioactive kind of cadmium is 14 years. How much will be left-example-1
User Grahame Grieve
by
2.0k points

2 Answers

15 votes
15 votes

Answer: 18

Explanation:

28 divided by 14 equals 2

72 multiplied by 0.05^2 equals 18

User Abdul Azeez
by
2.9k points
26 votes
26 votes

Answer:

18 grams

Explanation:

User Felix Gaebler
by
2.9k points