Chapter 20, Problem 20.84QP

Interpretation Introduction

Interpretation:

The material that contained in the airtight box which killed the man should be identified.

Concept introduction:

• Unstable nuclei emit radiation spontaneously to become stable nuclei by losing energy. This process of emission of radiation by unstable nuclei is known as radioactive decay.
• These emitted radiations may be alpha radiations( $\text{α}$), beta radiations( $\text{β}$) or gamma radiations( $\text{γ}$)
• These unstable nuclei are the nuclei with more than 83 protons and which do not lie within the belt of stability.

To identify:

The material that contained in the airtight box which killed the man