Question

Suppose the half-life of an isotope is 10 years. After how many years will half of this isotope have decayed into its daughter element?

5 years
10 years
20 years

Answer 1

10 Years

Step-by-step explanation:

Answer 2

A "half-life" is the amount it takes for a substance to decay toone-halff of the original amount. For example, if i have 100 gram of a substance that has a half-life of 5 min, 5 min later i'll have 50 grams. In this case, it will take 10 years to decay the isotope to half its original value.