Chapter 20, Problem 15QP

Interpretation Introduction

Interpretation:

For each pair of elements, the more stable isotope is to be predicted.

Concept introduction:

The nuclei thatcontain even number of protons or neutrons aremore stable than the nuclei thatcontain odd number of protons or neutrons.

The nuclei that contain 2, 8, 20, 50, 82, or 126 neutrons or protons are more stable than the nuclei that contain other number of neutrons or protons.

The magic numbers are 2, 8, 20, 50, 82, or 126