Transcript Naming Ionic Compounds with Transition Metals

Naming Ionic Compounds
with Transition Metals
Transition Metals:
Metals found in the D-block on the periodic table
 Get their name because most have more than 1
oxidation state, unlike the metals in S and P blocks,
which only have 1.
 Most have 2 or more oxidation states that they transition in and
out of:
Fe+2 and Fe+3
Common Oxidation Numbers for
Transition Metals:
Writing Compounds from the Name
with Transition Metals:
1. Write out the ions and their charges for each
element (the ion symbols)

The charge for the transition metal is represented
by a roman numeral.
Ex: Silver (I) nitride
Silver = Ag+1
2. Drop the signs
 The + and -
3. Swap the numbers
 The number for the charge of the nonmetal goes to the metal
 The number for the charge of the metal goes to the nonmetal
4. Simplify if needed
Copper (III) Nitride
Cu+3
N-3
Cu3N3
CuN
Let’s Practice:
Name:
Metal
Symbol
and
charge
Nonmetal
symbol
and
charge
Compound
Does it
need to
be
simplified
Simplified
compound
Iron (III) Oxide
Fe+3
O-2
Fe2O3
No
N/A
Molybdenum (II)
Phosphide
Vanadium (I) Sulfide
Chromium (IV) Chloride
Silver (I) Sulfide
Rules for naming ionic compounds
with transition metals:
1. The name of the metal ALWAYS comes first:
 The metal’s name is as it is on the periodic table
 Identify the metals charge with Roman Numerals
2. The name of the nonmetal ALWAYS comes second.
 Change the ending of the nonmetal to “ide”
3. Unswap and Undrop
 Bring the subscripts back up to the opposite element (the
elements should now have their actual oxidation number)
 Double check the nonmetals (anions) oxidation number to
make sure it is what it is supposed to be.
FeCl3
Fe+3 Cl-1
Iron (III) chloride
Naming transition metals:
1.
2.
3.
4.
Name the metal
Name the nonmetal
Unswap and Undrop
Check the oxidation number
FeO
Fe+1
O-1
Oxygen’s oxidation number is -2.
5.
6.
Multiply to get Oxygen to it’s -2 oxidation number
- multiply both Fe and O by 2 to get:
Fe+2 and O-2
Now name it:
Iron (II) Oxide
What is Oxygen’s
oxidation number?
Let’s Practice:
Compound:
Ag3N
MnN
CrI6
Ti3N4
Hg2O
PtS2
Metals symbol
and original
oxidation
number
Ag+1
Nonmetals
symbol and
original oxidation
number
N-3
Is the
nonmetal
oxidation
number
correct?
Yes
Name of the
compound
Silver (I) Nitride