Naming Compounds Flowchart
LOOK ON BACK FOR
EXAMPLES OF EACH!
Is there a METAL in the compound?
YES
NO
Is the METAL a TRANSITION METAL?
NO
Is the first element Hydrogen?
YES
3 or more elements
Metal / Nonmetal
Metal / Poly Ion
Ionic Binary
Ionic Ternary
2 elements
3 or more elements
Tran Metal / Nonmetal
Tran Metal / Poly Ion
Ionic Binary
Ionic Ternary
Name metal first
•
Name transition metal first
•
Name nonmetal
second and
change ending to
“-ide”
•
Determine charge of
transition metal and write as
Roman Numeral after name
•
Name nonmetal second
and change ending to “ide”
Name metal first
•
Name polyatomic
ion second
•
DO NOT change
ending to “-ide”
Acid
H + Element
Hydro + root anion + -ic acid
•
•
YES
Count the different elements
Count the different elements
2 elements
NO
•
Name transition metal first
•
Determine charge of
transition metal and write as
Roman Numeral after name
•
Name polyatomic ion
second
•
DO NOT change ending to
“-ide”
H + Polyatomic ion
•Poly ion ending in –ate
Root anion + -ic acid
•Poly ion ending in –ite
Root anion + -ous acid
Count the different
elements
1 element
Root anion = 1st part of
polyatomic ion name or element
2 elements
Diatomic molecule
Covalent Binary
Br2 I2 N2 Cl2 H2 O2 F2
•
Name first element, using
prefixes (except “mono-”)
(Prefixes indicate how
many of each element is
in the compound)
•
Name second element, using
prefixes (including “mono-”)
•
Change ending to “-ide”
•
Name the element
ROMAN NUMERALS
I
one
II
two
III
three
IV
four
V
five
DETERMINING THE CHARGE OF A TRANSITION METAL
1.
PREFIXES
Find the total charge of the Anion
Anion Oxidation # x Anion Subscript
2.
Covalent Compounds ONLY:
Look at the subscripts to tell you how
many of each element you have
Determine charge of Transition Metal
Total Anion charge
3.
÷
One
Two
Three
Four
Five
Six
Seven
Eight
Nine
Ten
Metal subscript
Transition metal charge is always positive (+)
Example:
Polyatomic Ion List
Step 1:
Step 2:
Step 3:
-2 x 3 = -6
-6 ÷ 2 = -3
+3 Charge of Fe
monoditritetrapentahexaheptaoctanonadeca-
Answer: Iron III oxide
COVALENT COMPOUNDS EXAMPLES
IONIC COMPOUNDS EXAMPLES
Nonmetal/Nonmetal
Metal/Nonmetal
P2O5
__________________________
KCl
__________________________
CCl4
__________________________
Al2O3
__________________________
Metal/Polyatomic Ion
Metal/Polyatomic Ion
Mg(NO3)2
__________________________
NaC2H3O2
__________________________
Cl2
__________________________
Br2
__________________________
ACID EXAMPLES
Transition Metal/Nonmetal
Fe2O3
__________________________
CuCl2
__________________________
H + Element
•
HCl
________________________________
•
H3P
________________________________
H + Polyatomic Ion
Transition Metal/Polyatomic Ion
CuCrO4
__________________________
Zn(OH)2
__________________________
•
H2SO4 ________________________________
•
H2SO3 ________________________________
•
H3PO4 ________________________________