Ca3N2 - Ca(+2), N(-3)
MgSO3 - Mg(+2), S(+4), O(-2)
NH3 - N(-3), H(+1)
P2O3 - P(+3), O(-2)
SO3 - S(+6), O(-2)
Ca3N2 - Ca(+2), N(-3)
MgSO3 - Mg(+2), S(+4), O(-2)
NH3 - N(-3), H(+1)
P2O3 - P(+3), O(-2)
SO3 - S(+6), O(-2)