Polyatomic Ions Practice Problems
1) What is a polyatomic ion?
2) Please explain how there can be both covalent and ionic bonds in one
compound.
3) Please fill in the following chart. In the third column please give the
formula unit of the ionic compound of the given polyatomic ion with
boron.
Polyatomic Ion
Structural Unit
Formula Unit (with B)
CN
-
PO
3-
4
CO
2-
3
4) Challenge: Draw the electron dot structure for hydrogen carbonate ion
(HCO
-
).
3
Polyatomic Ions Practice Problems
1) What is a polyatomic ion?
2) Please explain how there can be both covalent and ionic bonds in one
compound.
3) Please fill in the following chart. In the third column please give the
formula unit of the ionic compound of the given polyatomic ion with
boron.
Polyatomic Ion
Structural Unit
Formula Unit (with B)
CN
-
PO
3-
4
CO
2-
3
4) Challenge: Draw the electron dot structure for hydrogen carbonate ion
(HCO
-
).
3