1.38: Know the Charges of these Ions:

CHARGES OF POSITIVE IONS:                                   

s

ION	CHARGE
GROUP 1 METALS   ( Li, Na, K, Rb, Cs, Fr )	1+
GROUP 2 METALS   ( Be, Mg, Ca, Sr, Ba, Ra )	2+
GROUP 3 METALS   ( B, Al, Ga, In, TI )	3+
SILVER ( Ag )	Ag+
COPPER ( Cu )	Cu+
IRON II ( Fe )	Fe2+
IRON III ( Fe )	Fe3+
LEAD ( Pb )	Pb4+
ZINC ( Zn )	Zn2+
HYDROGEN ( H )	H+
AMMONIUM ( NH4 )	NH4+

s
s

CHARGES OF NEGATIVE IONS:                                   

s

ION	CHARGE
GROUP 5 NON - METALS   ( N, P, As )	3-
GROUP 6 NON - METALS   ( O, S, Se, Te )	2-
GROUP 7 NON - METALS   ( F, Cl, Br, I, At )	1-
HYDROXIDE ( OH )	OH-
CARBONATE ( CO3 )	CO32-
NITRATE ( NO3 )	NO3-
SULFATE ( SO4 )	SO42-