Chapter 0, Problem 9PE

Interpretation Introduction

Interpretation:

The number of electrons, protons, and neutrons present in each atom of ${}_{17}^{\text{35}}\text{Cl}$ is to be determined and whether we can discard the 35 or the 17 or both from this symbol ${}_{17}^{\text{35}}\text{Cl}$ without losing the ability to solve the problem, is to be explained.

Concept Introduction:

The atomic number is equal to the number of electrons or the number of protons.

The atomic mass of an element is defined as the mass of an atom.

The mass number is equal to the sum of the number of protons and neutrons.