## Physics: Principles with Applications (7th Edition)

Published by Pearson

# Chapter 30 - Nuclear Physics and Radioactivity - Questions: 19

#### Answer

No, the amount of radioactive material remaining after two months is one-fourth of the original.

#### Work Step by Step

After one half-life, we are down to one-half the original amount. After two half-lives, we are down to one-quarter the original amount. After three half-lives, we are down to one-eighth the original amount. After four half-lives, we are down to one-sixteenth the original amount. Each month, half of the remaining atoms will decay.

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