Covalent bonding
Atoms share electrons to follow the octect rule
Ionic bonding
transferring electrons to follow the octect rule
Octet rule
Having 8 electrons on the outermost shell makes an atom stable.
8 electrons on the outermost shell =
stable
Cation
positive ion (more protons than electrons)
Neutral
equal number of protons and electrons
Anions
negative ion (more electrons than protons)