Name: __________________________
Hour: 1 2 3 4 5 6 7 8
7.1 Naming Polyatomic Ions
RULE:
The polyatomic ending ate is used for the form of the ion that has the most common # of oxygen(s) attached. The ending ite is
used for one less oxygen. Hypo(below) + ite for two less, and per(above)+ate for one above. The superscript number (which are
charges) remain the same for each grouping.
1. What is the most common form?
2. How do you know?
ClO4-1
ClO3-1
ClO2-1
ClO-1
Perchlorate
Chlorate
Chlorite
Hypochlorite
Complete the following:
Sulfite
Phosphate
SO3-2
Hypoiodite
IO-1
Hypochromite
CrO2-2
PO4-3
Percarbonate
CO4-2
Arsenate
AsO4-3
Bromite
BrO2-1
Permanganate
MnO4-1