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Ionic Nomenclature

Must be neutral overall

NO PREFIXES!!!!!!

Name the cation first, then the anion Cation is either a metal or ammonium • To name a metal cation, use the element name and a roman numeral to indicate the charge of the cation • Tin(II) is Sn 2+ • • • • Mercury(I) is Hg 2 2+ (it’s diatomic) Roman numerals are NOT used for the following because they only have one charge: Group 1A (+1), Group 2A(+2), ammonium(+1), or CdZnAgAl 2213 (where 2 is the charge of Cd, 2 is the charge of Zn, etc.) • Sodium is Na + • Mercury(II) is Hg 2+ Magnesium is Mg 2+ • Tin(III) is Sn 3+ Cadmium is Cd 2+

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Ionic Nomenclature

Anion is either a nonmetal or a negative polyatomic ion (like sulfate or phosphite) • Use the ion name for the nonmetal (Cl is chloride) • • Some examples for you to look at before we practice Zr(NO 3 ) 2 • = zirconium(II) nitrate Since nitrate has a -1 charge and there are 2 of them, zirconium must have a +2 charge to make the compound neutral overall • • CuCl = copper(I) chloride CuCl 2 • = copper(II) chloride the # of Cl depends on the charge of Cu ion • Ag 3 PO 4 = silver phosphate (no roman numerals because this is part of CdZnAgAl 2213)

Work with your shoulder partner –

A does #1 and B checks, B does #1 and A checks A does #2 and B checks, etc.  the answers will be displayed when everyone is done

These are A’s problems (B will check them)

1. Au(ClO) 2 2. MgO 3. Fe 2 S 3 4. AlN

These are B’s problems (A will check them)

1. CoP 2. Ag 2 CO 3 3. Ca(CN) 2 4. PbF 2 If there are groups of 3, just rotate A, B, and C Hint: each set has 2 that need roman numerals and 2 that do not

Answers

These are A’s problems (B will check them)

1. Au(ClO) 2 gold(II) hypochlorite 2. MgO magnesium oxide 3. Fe 2 S 3 iron(III) sulfide 4. AlN aluminum nitride

These are B’s problems (A will check them)

1. CoP cobalt(III) phosphide 2. Ag 2 CO 3 silver carbonate 3. Ca(CN) 2 calcium cyanide 4. PbF 2 lead(II) fluoride

Work these on your own –

(but ask your partner if you need help) Careful: I mixed in some covalent….

1. FeSO 4 2. (NH 4 ) 2 CrO 4 3. NI 3 4. Fe(HCO 3 ) 3 5. Co(C 2 H 3 O 2 ) 3 6. Y(OH) 2 7. FeBr 3 8. SO 3 9. ZnSO 3 1. iron(II) sulfate 2. ammonium chromate 3. nitrogen triodide 4. iron (III) bicarbonate 5. Cobalt(III) acetate 6. yttrium(II) hydroxide 7. Iron(III) bromide 8. sulfur trioxide 9. zinc sulfite