Chapter 4, Problem 79A

Interpretation Introduction

Interpretation:

The term radioactive decay needs to be explained.

Concept introduction:

Whenever there is an unstable nucleus in an atom, it loses some energy in a form of radiations to come in stable state. This processes of emitting radiation is known as radioactivity.

Answer to Problem 79A

Radioactive decay is a process of emitting radiations from unstable nuclei to bring it in a stable form.

Explanation of Solution

Some materials have unstable nucleithese types of materials are known as a radioactive material. These materials emit radiations to come in a stable form through a process of radioactive decay. An unstable atom goes into radioactive decay until it forms a stable atom. Radiations released during radioactive decay are of three types on the basis of effect on electric fields.

• Alpha Radiation
• Beta Radiation
• Gamma Radiation

Conclusion

Radioactive material emits radiation to come in stable form this process is known as radioactive decay.