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Ionic Compounds (names with roman numerals)
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Ionic Compounds
Balancing Charges
Examples:
Rules for naming:
PbCl4= Lead (IV) Chloride
PbS = Lead (II) sulfide
Copper (II) bromide = CuBr2
CuF2= Copper(II) Floride
1.) Name the first element using the full name.
2.) Name the second element using the root of the name with an -ide ending.
Ex: name the ionic compound.
CoCl2
1.) Take the full name of the first element.
2.) Change chlorine to chloride.
3.) Refer to common ion sheet and decipher which charge will balance out with chlorine.
cobalt(II) chloride
Ex: name the ionic compound.
3.)If the metal can have different possible charges, use roman numerals to indicate the charge for the metal. (refer to common ion sheet)
FeCl2
1.) Take the first element.
2.) Change chlorine to chloride.
3.) Refer to common ion sheet and decipher which charger for iron will balance out with chlorine.
Iron(II) chloride
For example:
Iron can have a charge of 2+ or 3+. The compounds FeCl2 and FeCl3 would have the names iron (II) chloride and iron (III) chloride.
Ex: Name the Ionic compound with roman numerals.
Fe3O
1.) Take the full name of the first element.
2.) Change oxygen to oxide.
3.) Look up Fe3 on common ion sheet. You will notice that fe3 will be Iron(lll).
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