Author Question: If three samples have the half-lives listed below, which is the most radioactive? A) a sample ... (Read 72 times)

ishan · **on:** Jul 29, 2018

If three samples have the half-lives listed below, which is the most radioactive?

A) a sample with a half-life of 20 minutes
B) a sample with a half-life of 20 hours
C) a sample with a half-life of 20 years
D) a sample with a half-life of 20 million years
E) none of the above

Question 2

If three samples have the half-lives listed below, which sample would remain radioactive the longest?

A) a sample with a half-life of 20 minutes
B) a sample with a half-life of 20 hours
C) a sample with a half-life of 20 years
D) a sample with a half-life of 20 million years
E) none of the above