Naming Metal Compounds with a Variable Charge
variable
fixed
82
47
207.2
107.868
4, 2
1
Pb
Ag
silver
lead
Name this compound…… PbCl2
1. Decide if the metal has a variable or fixed charge.
2. Determine the charge of the metal in the compound.
+2
(reverse criss cross)
-1
PbCl2  Pb Cl
 2
3. Name the metal followed by a Roman numeral in brackets.
(The Roman numeral represents the charge of the metal)
lead (II)
4. Change the ending of the non metal to “ide”.
lead (II) chloride
formula will show you the charge 
SnF4
Fe2O3
CuS
HgBr2
tin(IV)fluoride
iron(III)oxide
copper(II)sulfide
mercury(II)bromide
 name will tell you the charge 
nickel(III)sulfide N2S3
tin(IV)selenide Sn1Se2
vanadium(III)selenide V2Se3
chromium(VI)oxide Cr1O2