Ionic Compounds Involving Transition Metals

Formulas&

Nomenclature

Objectives Covered Today

9. Name compounds containing transition metals.

10. Given the name of a compound containing a

transition metal, write its formula.

Objective 9

• Transition metals are those metals whose valence electrons exist in the d-block of the periodic table.

• This allows them to have multiple oxidation numbers

• We must take this into consideration when naming transition metal ionic compounds

Objective 9

Name compounds containing transition metals.

Example CompoundFeCl2

1. Identify transition metal cation, and anion from formula

Objective 9

Name compounds containing transition metals.

Example CompoundFeCl2

1.Identify transition metal cation, and anion from formula

Iron Chloride

Objective 9

Name compounds containing transition metals.

Example CompoundFeCl2

2. Identify charge (oxidation number) of transition metal cation

Objective 9

Name compounds containing transition metals.

Example CompoundFeCl2

3. Write oxidation number of transition metal cation after the name of the metal as a roman numeral in parentheses

Example CompoundFeCl2

Iron (II) Chloride

PracticeName the following transition metal ionic

compounds

1.NiCl2

2.Cu2O

3.SnBr4

Objective 10

Given the name of a compound containing a transition metal, write its formula.

Example Name: Cobalt (III) Chloride

1.Determine symbol and charge of transition metal cation

Objective 10

Given the name of a compound containing a transition metal, write its formula.

Example Name: Cobalt (III) Nitrate

1.Determine charge of transition metal cation

Co3+

Objective 10

Given the name of a compound containing a transition metal, write its formula.

Example Name: Cobalt (III) Nitrate

2. Determine charge of individual anion

Objective 10

Given the name of a compound containing a transition metal, write its formula.

Example Name: Cobalt (III) Nitrate

2. Determine charge of individual anion Chloride anion has a -1 charge

Objective 10

Given the name of a compound containing a transition metal, write its formula.

Example Name: Cobalt (III) Nitrate

3. Determine ratio of cations and anions needed to balance the charge

Objective 10

Given the name of a compound containing a transition metal, write its formula.

Example Name: Cobalt (III) Nitrate

3. Determine ratio of cations and anions needed to balance the charge

1 Co3+ to 3 NO3-

Example Name

Cobalt (III) ChlorideCoCl3

Practice

Give formulas for the following compounds using their names

1. Chromium (III) Sulfide

2. Mercury (I) Chloride

3. Zinc (II) Nitride