1. INORGANIC NOMENCLATURE
Ionic Names
Covalent Names
Common Names

2. First you have to decide whether you have an ionic compound or other type of compound

3. Naming ionic compounds if you have the formula

4. Ionic Compounds Naming
The cation is first and is read just like the element unless polyatomic
The anion is second and has an “-ide” ending unless polyatomic
Examples: NaCl and MgO
Polyatomic ions have common names
Examples: CO32-, SO43-, NH41+, PO43-

5. Polyatomic Ions need to be looked up

6. Transition Elements have Roman Numerals which indicates their charge
Try some examples

7. Copper Nitrate is? CuNO3 or Cu(NO3)2
Transition metals may have more than one oxidation state which means that they can have more than one ratio with an anion. Therefore the oxidation state is included in the name.
Copper Nitrate is?
CuNO3 or Cu(NO3)2
Copper (I) Nitrate or Copper (II) Nitrate
Oxidation numbers can be found by the polyatomic ion or just the anion in general because the oxidation number does not change

8. How do we find out the formula from the name
How do we find out the formula from the name? (what the ratio of cations to anions is in the ionic compound)?
Really the question here is.

9. Li O Ionic Formulas 1st Cations, 2nd Anions
Use oxidation number crisscross to balance Ex. Lithium Oxide
Li1+ O2-
Li O 1 2

10. Reduce at the end
Example: MgO

11. Ionic Comps & Hydration
prefixes for the degree of hydration
CuNO H2O
Copper (I) Nitrate Pentahydrate

12. Nomenclature for Molecular Compounds

13. Many common names exist
Chemicals were used before we knew there make-up and everyone uses chemicals not just chemists

14. The name of the less electronegative is not changed
The element with the smallest electronegativity is written first
Hydrogen will appear out of order frequently because it is part of groups
The name of the less electronegative is not changed
Add “ide” to more electronegative element
NO2

15. Elements include prefixes
Mono – 1 (sometimes assumed)
Di – 2
Tri – 3
Tetra – 4
Pent – 5
Hex – 6
Hept - 7
Oct - 8
The prefix differentiates from ionic and specifies (carbon monoxide & carbon dioxide)

16. How do we find the formula from the name?
Prefixes

17. Practice Worksheet