Na2CO3: Na(+1), C(+4), O(-2)MgCl2: Mg(+2), Cl(-1)N2: N(0)Ca3N2: Ca(+2), N(-3)HClO4: H(+1), Cl(+7), O(-2)K2MnO4: K(+1), Mn(+7), O(-2)S: S(0)AlY3: Al(+3), Y(-3)NCl5: N(+3), Cl(+5)Al2S3: Al(+3), S(-2)
Na2CO3: Na(+1), C(+4), O(-2)
MgCl2: Mg(+2), Cl(-1)
N2: N(0)
Ca3N2: Ca(+2), N(-3)
HClO4: H(+1), Cl(+7), O(-2)
K2MnO4: K(+1), Mn(+7), O(-2)
S: S(0)
AlY3: Al(+3), Y(-3)
NCl5: N(+3), Cl(+5)
Al2S3: Al(+3), S(-2)