Covalent Bonds

Covalent bonds form between non-metal atoms that SHARE electrons. Doing so helps them achieve a stable outer electron shell.

Covalent bonds are stronger than ionic bonds. Each atom pulls at the others’ electrons.

Polar covalent bonds occur when the two atoms are different. The atoms with more protons has a stronger pull on the electrons, so that atoms becomes partially negative.

As a result, the atom with a weaker pull becomes partially positive.

Naming Covalent Compounds

Prefix• Mono- 1• Di- 2• Tri- 3• Tetra- 4• Penta- 5• Hexa- 6• Hepta- 7• Octa- 8• Nona- 9• Deca- 10

• First element in the formula is named first using prefix

• Second element follows using # prefix AND suffix ‘-ide’

• Mono is not used for the first element

• Example• N2O

– Dinitrogen Monoxide

• N2O5

– Dinitrogen Pentoxide