How can you describe the electrical charge of an ionic compound

The net electrical charge of an ionic compound is zero. The unequal number of ions in a compound introduces the electric charge. The number of positive and negative ions are equal in an ionic compound, and this equality in number but opposition in charges introduces electrical neutrality in ionic compounds, making the net charge zero.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.