Question

Which of these statements is correct about material 1 and 2?

The half-lives of Material 1 and Material 2 are same.

The half-life of Material 2 is one-fourth of the half-life of Material 1.

The half-life of Material 2 is 5 years more than the half-life of Material 1.

The half-life of Material 1 is 5 years more than the half-life of Material 2.

Answer 1

Answer:

D. The half-life of Material 1 is 5 years more than the half-life of Material 2.

Explanation:

As you can see in the graphs for material 1 to get to 50% it takes 30 years. for material 2 it takes 25 years to get to 50%. Therefor the halflife of material 1 is 5 years more than material 2