*
*
*A binary ionic compound (M – NM)
*An ionic compound with a
polyatomic ion (check your list)
*An ionic compound with a transition
metal
*Look for Roman Numerals
*
*Metal ion name written first (no change to
the element’s name)
*Nonmetal ion name written second
*Ending dropped and replaced with –ide
*Example: NaCl is named Sodium Chloride
*
*Anions: change the nonmetal to end
in “ide” plus “ion”
*Examples
*N3- Nitride ion
*P3- Phosphide ion
*O2- Oxide ion
*S2- Sulfide ion
*
*Cl*Br*F*I-
Chloride Ion
Bromide Ion
Fluoride Ion
Iodide ion
*
* Metal ion name written first
* Nonmetal ion name written second
* Examples:
* SrO
* Strontium
Oxide
* MgF2
* Magnesium Fluoride
*
*Name the following:
*1. NaF
*2. Al2O3
*3. MgCl2
*4. Li3P
*5. KI
*
*Three Kinds
*Metal – Polyatomic
*Polyatomic-nonmetal
*Polyatomic-polyatomic
*Polyatomic---More than two atoms in a compound
*Only time you’ll have a polyatomic ion with just two
elements is when you have peroxides
*Na2O2
* H2 O2
*K2O2
*
*Metal – Polyatomic
*Ca(OH)2
*Name the metal, then look up the
polyatomic ion
* Calcium Hydroxide
*Al2(SO4)3
* Aluminum Sulfate
*
*Polyatomic – Nonmetal
*NH4Cl
*Look up the name of the poly ion,
remember to add “ide” when naming
the non-metal ion
*Ammonium Chloride
*
*Polyatomic-Polyatomic
*(NH4)2SO4
*Look up the names on your polyatomic
ion list
*Ammonium Sulfate
*
* Remember, transition metals are in group 3 –
12.
* Same as before just add a Roman numeral to
the metal (cation) name.
* The Roman numeral is the charge of the metal
ion.
* You must work backward to find the charge of
the metal.
*
*Some Transition Metals carry
multiple charges, depending on what
element they bond with.
*Copper (I) ion 1+ charge
*Copper (II) ion 2+ charge
*Iron (II) ion
2+ charge
*Iron (III) ion 3+ charge
*
*Some transition metals only form
one charge and do not use the
Roman numerals.
*YOU MUST MEMORIZE THESE….
*Silver
Ag+
*Zinc
Zn2+
*Cadmium Cd2+
*Bismuth Bi3+
*
*Ti2+
*Ag+
*Mn4+
*Zn2+
*Ni3+
*
*How do you know what the charge on
the metal is?
*TWO KEY POINTS FOR FINDING CHARGE:
*The overall charge of the compound must
be zero.
*The positive charge is equal but opposite
of the negative charge.
*
*1. Look up the charge of the negative ion.
*2. Multiply the negative charge by the
number of anions (the subscript x charge).
This is the total negative charge.
*3. Put a + sign on the total negative charge,
this is the total positive charge.
*4. Divide the total positive charge by the
number of cations. This is the charge of each
transition metal ion which is the Roman
numeral.
*
*FeO
*TiO2
*Cu3(PO4)2
*Fe2(SO4)3
Iron (II) Oxide
Titanium (IV) Oxide
Copper (II) Phosphate
Iron (III) Sulfate
*
*Name the following: **don’t forget
some don’t get a roman numeral
*1. FeS
*2. FeCl3
*3. TiS2
*4. ZnF2
*5. CuCl