Common Ion Table

+1 +2 +3 +4 +5

Column 1A Column 2A Column 3A Column 4A Column 5

NH₄⁺(ammonium) Cd⁺²(cadmium) Sb⁺³(antimony) Sn⁺⁴(tin IV)

Hg⁺(mercury I) Zn⁺²(zinc) Bi⁺³(bismuth) Pb⁺⁴(lead IV)

Au⁺(2,4)(gold I) Sn⁺²(tin II) Au⁺³ (4)(gold III)

Ag⁺(2)(silver I) Hg⁺²(mercury II)

Pb⁺²(lead II)

-1 -2 -3 -4

Column7A Column 6A Column 5A Column 4A

*C₂H₃O₂^-(acetate) *CO₃^-2(carbonate) *PO₄^-3(phoshate)

CN^-(cyanide) *CrO₄^-2(chromate)

*ClO₃^-(chlorate) *Cr₂O₇^-2(dichromate)

SCN^-(thiocyanide) *C₂O₄^-2(oxalate)

H^-(hydride) O^-2(oxide)

OH^-(hydroxide) O₂^-2(weird-peroxide)

*IO₃^-(iodate) *SiO₃^-2(silicate)

*NO₃^-(nitrate) *SO₄^-2(sulfate)

*MnO₃^-(manganate) *S₂O₄^-2(thiosulfate)

*BrO₃^-(bromate)

*=normal # of oxygen

Transition Behaviors (and their columns)

Sc Ti V Cr Mn Fe Co Ni Cu Zn

+3 +2,3,4 +2,3,4,5 +2,3,6 +2,3,4,7 +2,3 +2,3 +2,3 +1,2 +2

Coordination Numbers

6 6 4 6 4 6 4 2 4

6 6 6 4 6

(in general, coordination number may be 2X or 2X+2 of valence)

Common Ligand Substances

0 -1 -2

aquo (H₂O) fluoro (F^-) oxalate (C₂O₄^--)

ammine (NH₃) cloro (Cl^-)

methylamine (CH₃NH₂) bromo (Br^-)

carbonyl (CO) iodo (I^-)

nitrosyl (NO) hydroxyl (OH^-)

ethyldiamine (NH₂CH₂CH₂NH₂) cyano (CN^-)

propyldiamine (NH₂CH₂CH₂CH₂NH₂) thiocyano (SCN^-)

nitro (NO₂^-)