Chapter 24, Problem 48A

Interpretation Introduction

(a)

Interpretation:

From the given figure stable nuclei to be determined.

Concept introduction:

Radioactive decay is unstable nuclei that lose energy by emitting radiation in a spontaneous process. Until they form stable atoms unstable atoms undergo radioactive decay, often of a dissimilar element.

Answer to Problem 48A

Stable nuclei are found in band B.

Explanation of Solution

Band stability defines if an element must create in lab or can found in nature. For example if an isotope lies outside band stability it is a radioactive and undergoes decay in order to gain stability. Stable nuclei are found in band B.

(b)

Interpretation Introduction

Interpretation:

From the given figure nuclei that undergo alpha decay to be determined.

Concept introduction:

Radioactive decay is unstable nuclei that lose energy by emitting radiation in a spontaneous process. Until they form stable atoms unstable atoms undergo radioactive decay, often of a dissimilar element.

Answer to Problem 48A

Alpha radiation diverted towards negatively charged plate. In given figure alpha decay occurs in band D.

Explanation of Solution

An alpha particle has two protons and two neutrons. Thus charge is +2. Alpha radiation diverted towards negatively charged plate. In given figure alpha decay occurs in band D.