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Chem3 Ch5.p3.B.1
Naming Ionic Compounds-Trans M & M not in G1& G2 & NM -
Naming from Formulas: Process | Answer |
---|---|
Step 1 | Name the metal first as is |
Step 2 | name the nonmetal by taking the root (1st part) and ending w/ ide |
Step 3 | Determine the charge on the cation by using the charge on the anion |
Rule 3a | Total charge on cation should be equal to total charge on anion |
Step 4 | Specify the cation charge by a roman numeral in parentheses |
FeS | Iron ions (Fe?+) and Sulfide ions(S2-) combine to make iron sulfide. S (G6) always forms S2-; 1(?+) = 1(2-) = 2+ to give iron (II) sulfide |
UF6 | Uranium ions (U?+) and fluoride ions (F1-) combine to give uranium flouride. F(G7) always forms F- ; 1(?+) = 6(1-) = 6+ to give uranium (VI) flouride |
Fe2O3 | Iron ions (Fe?+) and oxide ions (O2-) combine to give iron oxide. O(G6)always forms O2-; 2(?+) = 3(2-) = 3+ to give iron (III) oxide |