Chapter 0, Problem 27RQ

Interpretation Introduction

Interpretation:

The information that is depicted by “a” and “b” in the symbol ${{}^a}_{b}X$, where $X$ is a chemical symbol of an element, is to be interpreted.

Concept Introduction:

The number of protons present in the nucleus determines the atomic number and is represented by the symbol “Z”.

The total number of protons and neutrons present in the nucleus determines the mass number of an atom and is represented by the symbol “A”.