Common Cations and Anions

Hydrogen
H+ – group IA
Lithium
Li+ – group IA
Sodium
Na+ – group IA
Potassium
K+ – group IA
Silver
Ag+
Magnesium
Mg+2 – group 2A
Calcium
Ca+2 – group 2A
Strontium
Sr+2 – group 2A
Barium
Ba+2 – group 2A
Cadmium
Cd+2
Zinc
Zn+2
Aluminum
Al+3
Copper
Cu+ -> copper(I) or cuprous
Cu+2-> copper(II) or cupric
Mercury
Hg+-Hg+ -> mercury(I) or mercurous
Hg+2 -> mercury(II) or mercuric
Iron
Fe+2 -> iron(II) or ferrous
Fe+3 -> iron(III) or ferric
Cobalt
Co+2 -> cobalt(II) or cobaltous
Co+3 -> cobalt(III) or cobaltic
Lead
Pb+2 -> lead(II) or plumbous
Pb+4 -> lead(IV)or plumbic
Tin
Sn+2 -> tin(II) or stannous
Sn+4 -> tin(IV) or stannic
Nitrogen
N-3 -> nitride

( group VA )

Phosphorous
P-3 -> phosphide

( group VA )

Oxygen
O-2 -> oxide

( group VI A )

Sulfur
S-2 -> sulfide

( group VI A )

Fluorine
F- -> fluoride

( group VIIA )

Chlorine
Cl- -> chloride

( group VIIA )

Bromine
Br- -> bromide

(group VIIA)

Iodine
I- -> iodide

(group VIIA)

Hydrogen
H- -> hydride
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