Chapter 2, Problem 5PE

Interpretation Introduction

Interpretation:

The number of protons and electrons in the given atoms or ions is to be determined.

Concept Introduction:

Atoms are composed of tiny particles known as protons, electrons, and neutrons.

The atomic number of an element is equal to the number of protons in that element. Number of protons in an atom is equal to number of electrons.

Electron has negative charge, proton has positive charge and neutron has no charge.

Ions with negative charge must have gained electrons, and ions with positive charge must have lost electrons.