Covalent bonds can be single, double or triple. How many electrons are shared in each? Give an example of each type.

Covalent bonds	Shared electrons	Example
Single covalent bonds	By sharing one pair of electrons between the atoms.	H2
Double covalent bonds	By sharing two pairs of electrons between two atoms.	O2
Triple covalent bonds	Sharing of three pairs of electrons between two atoms.	N2

Each example: 1 Mark