Question #dd6c5

1 Answer
Jan 21, 2016

A lone pair is a pair of valence electrons that is not shared with another atom.


You identify lone pairs by drawing a Lewis structure.

For example, the Lewis structure of water is

The electrons between the O and H atoms are bonding pairs.

The electrons that are not between the O and H atoms are lone pairs.

The number of lone pair electrons plus the number of bonding electrons equals the number of valence electrons around an atom.