Chapter 19, Problem 6SAQ

Interpretation Introduction

Interpretation:

Half life of Iron- $59$ is given. If a sample contains $\text{132}\text{mg}$ of iron- $59$ , then the correct option corresponding to the amount of iron- $59$ left in the sample after $\text{265}\text{days}$ is to be identified.

Concept Introduction: Decay constant is the quantity that expresses the rate of decrease of number of atoms of a radioactive element per second. Half life is defined as the time required for the number of nuclides to reach half of the original value.

To determine: The correct option corresponding to the amount of iron- $59$ left in the sample after $\text{265}\text{days}$ .

Correct answer: The correct option is (b).