Covalent bond Covalent bond formed between two(or more)non-metals, or one non-metal and one metal with low activity Atoms are connected by one pair(or more pairs)of shared electrons Examples H2, O2, N2, HCl, H2O, Co2, Co, C2 Br2 GaAs, ZnSe, HgsCovalent Bond  Covalent bond:  formed between two (or more) non-metals, or one non-metal and one metal with low activity.  Atoms are connected by one pair (or more pairs) of shared electrons.  Examples:  H2, O2, N2, HCl, H2O, CO2, CO, C2Br2.  GaAs, ZnSe, HgS 5