Chapter 4.5, Problem 45PP

Interpretation Introduction

Interpretation:

The number of atoms of the isotope which will be more in a sample of copper among two isotopes of copper $\left({}_{\text{29 }}^{\text{63}}{\text{Cu and }}_{\text{29}}^{\text{65}}\text{Cu}\right)$ should be determined.

Concept introduction:

Most of the elements have two or more than two isotopes. Isotopes are the atoms of the same element with different mass numbers due to presence of different number of neutrons in their nuclei. The relative abundance of isotopes varies in nature. For this reason, the atomic mass of an element is calculated by multiplying the mass of each isotope by its percentage abundance value and then adding all those values for all isotopes of the element.