1. Nomenclature Ionic Compounds

2. Topics Ionic Nomenclature Standard Transition Metals (multivalent) Polyatomic Ions

3. Nomenclature Latin: Nomen – name, Clature – to call A standardized naming system. In this case, we are applying it to compounds. Ex. NaCl = Sodium Chloride

4. Standard Ionic Nomenclature All ionic bonds are formed between metals and non-metals. Standard Ionic Bonds are formed between: Cations from group 1, 2, or 3 and Anions from group 15, 16, or 17 Example: NaCl Ca 3 P 2

5. Standard continued… Rules: The metal’s name remains the same Add the suffix “ide” to the name of the non- metal. Name = Metal + Non-Metal + ide Example: MgS = Magnesium Sulfide Li 2 O = Lithium Oxide Ca 3 As 2 = Calcium Arsenide

6. Standard Practice FormulaName LiH MgCl 2 CaSe Be 3 N 2 NaI

7. Standard Practice FormulaName LiH Lithium Hydride MgCl 2 CaSe Be 3 N 2 NaI

8. Standard Practice FormulaName LiH Lithium Hydride MgCl 2 Magnesium Chloride CaSe Be 3 N 2 NaI

9. Standard Practice FormulaName LiH Lithium Hydride MgCl 2 Magnesium Chloride CaSe Calcium Selenide Be 3 N 2 NaI

10. Standard Practice FormulaName LiH Lithium Hydride MgCl 2 Magnesium Chloride CaSe Calcium Selenide Be 3 N 2 Beryllium Nitride NaI

11. Standard Practice FormulaName LiH Lithium Hydride MgCl 2 Magnesium Chloride CaSe Calcium Selenide Be 3 N 2 Beryllium Nitride NaI Sodium Iodide

12. Transition Metals and Nomenclature Transition metals are the elements in the “bridge” of the periodic table (groups 3- 12) SOME of the transition metals can form more than one type of ion. Therefore, we must find some way to indicate the charge of the ion in the name. We use Roman Numerals

13. Roman Numerals One - ISix - VI Two - IISeven - VII Three - IIIEight - VIII Four - IVNine - IX Five - VTen - X

14. Transition Metals Continued… Rules The name of the transition metals remains the same The charge of the transition metal is indicated with roman numeral in brackets The suffix “ide” is added to the name of the non- metal. Name = Transition Metal + (Roman Numeral) + Non-Metal + ide Ex. [Au] 3+ and [Cl] - = AuCl 3 = Gold (III) Chloride Use the Criss-Cross Rule to discover the charge from the chemical equation.

15. Criss-Cross Rule and Finding Charges Some chemical formulas do not directly indicate the charge of the transition metal. We need to work backwards to figure it out. Ex: AuN We know that Nitrogen forms an ion with a charge of 3- Therefore, Gold must have a charge of 3+ The name is then Gold (III) Nitride

16. Transition Metal Practice FeF 2 FeN TiP TiCl 4 PdS

17. Transition Metal Practice FeF 2 Iron (II) Flouride FeN TiP TiCl 4 PdS

18. Transition Metal Practice FeF 2 Iron (II) Flouride FeN Iron (III) Nitride TiP TiCl 4 PdS

19. Transition Metal Practice FeF 2 Iron (II) Flouride FeN Iron (III) Nitride TiP Titanium (III) Phosphide TiCl 4 PdS

20. Transition Metal Practice FeF 2 Iron (II) Flouride FeN Iron (III) Nitride TiP Titanium (III) Phosphide TiCl 4 Titanium (IV) Chloride PdS

21. Transition Metal Practice FeF 2 Iron (II) Flouride FeN Iron (III) Nitride TiP Titanium (III) Phosphide TiCl 4 Titanium (IV) Chloride PdS Palladium (II) Sulfide

22. Polyatomic Ions and Ionic Nomenclature Polyatomic Ions are ions that are composed of more than one type of atom. Most are negative ions / metals.Ex. NH 4 + Rules: The name of the metal stays the same. The names of the polyatomic ions are provided on the polyatomic ions chart. Their names do not change. If the polyatomic ion is first in the compound (positive / metal), you must add the suffix “ide” to the non-metal). Name = Metal + Polyatomic Ion or Name = Polyatomic Ion + Non-Metal +ide

23. Polyatomic Practice BeCrO 4 LiCN Ca(HSO 3 ) 2 (NH 4 ) 2 S Co(NO 3 ) 3

24. Polyatomic Practice BeCrO 4 Beryllium Chromate LiCN Ca(HSO 3 ) 2 (NH 4 ) 2 S Co(NO 3 ) 3

25. Polyatomic Practice BeCrO 4 Beryllium Chromate LiCN Lithium Cyanide Ca(HSO 3 ) 2 (NH 4 ) 2 S Co(NO 3 ) 3

26. Polyatomic Practice BeCrO 4 Beryllium Chromate LiCN Lithium Cyanide Ca(HSO 3 ) 2 Calcium Bicarbonate (NH 4 ) 2 S Co(NO 3 ) 3

27. Polyatomic Practice BeCrO 4 Beryllium Chromate LiCN Lithium Cyanide Ca(HSO 3 ) 2 Calcium Bicarbonate (NH 4 ) 2 S Ammonium Sulfide Co(NO 3 ) 3

28. Polyatomic Practice BeCrO 4 Beryllium Chromate LiCN Lithium Cyanide Ca(HSO 3 ) 2 Calcium Bicarbonate (NH 4 ) 2 S Ammonium Sulfide Co(NO 3 ) 3 Cobalt (III) Nitrate