Question

Determine the charge of each atom if it is composed of the following particles:

1. 5 electrons and 5 protons

2. 6 protons and 5 electrons

Answer 1

The net charge of atom containing:

1. 5 electrons and 5 protons

$$Q=5(-e)+5e=0$$

2. 6 protons and 5 electrons

$$Q=5(-e)+6e=e=1.6*10^{-19}\: \rm C$$