Formation of chemical bonds make atoms stable by straining stable electron striation in
the outermost shell.
There are 3 types of chemical bonding:
1) Ionic bonding
Made up of ions.
2) Covalent bonding
This kind of bonding takes place when non-metal atoms bond together.
Non-metal atoms share electrons between them.
So electron pairs (each from different atoms, this pair is not used by both atoms) are
shared by atoms. One pair represents a “covalent bond”, the numbers of pairs are formed
depending on who many more atoms are needed.
If one pair, it is a single bond, two pairs double bond and three pairs, triple bond.