Question

If the half-life of substance A is 1.5 years, how long would it take an 8.0 gram sample of stances A to decay such that only 1.0 gram remained?

Answer 1

4.5 i think

Step-by-step explanation:

Answer 2

Answer: 4.5 Years

Step-by-step explanation:

8 -> 4 -> 2 -> 1

Substance goes through 3 Half-Lives

3 Half-Lives x 1.5 Years = 4.5 Years