Polyatomic Ions and Polyvalent cations Flashcards
1
Q
What is a polyatomic ion?
A
When a metal cation is bonded to a polyatomic anion
2
Q
What is the polyatomic cation?
A
Ammonium NH4+
3
Q
How do you name a polyatomic ion?
A
- write the metal name
2. write the anions name (don’t change)
4
Q
What is a polyvalent cation?
A
A metal with two or more charges
5
Q
Which charge of a polyvalent cation is most common?
A
The top one
6
Q
What can a polyvalent cation combine with?
A
A nonmetal or a polyatomic anion
7
Q
What must be added in naming to represent the elements charge?
A
A roman numeral
