The Covalent Bonding Model
Each atom in a covalent bond “counts” the shared electrons
as belonging entirely to itself.
An electron pair that is part of an atom’s valence shell but not
involved in bonding is called a lone pair, or unshared pair.
Bond order: the number of electron pairs being shared between
any two bonded atoms
single bond (H2) - bond order of 1
double bond (H2C=CH2) - bond order of 2
triple bond (N2) - bond order of 3
| Previous slide | Next slide | Back to first slide | View graphic version |