How and Why they Form
How ions form
Similarly if an atom looses electrons the total number of protons become more than the number of electrons.. and the atom becomes positively charged.
Why Ions Form
Types of Ions
Cations are positively charged ions. Cations are the opposite of anions, since cations have fewer electrons than protons. Dianion: a dianion is a species which has two negative charges on it; for example, the aromatic dianion pentalene. Radical ions: radical ions are ions that contain an odd number of electrons and are mostly very reactive and unstable.