Bellringers 1-4

1. Valence electrons are the electrons that

a. orbit the outside shell.
b. are stable.
c. do not have a charge.
d. have no energy.

2. What is the difference between a monatomic and polyatomic ion?

3. Complete the following table:

Element # Electrons # Valence Electrons Oxidation # (Charge)
Na
S
He
Ar
Si

4. Name the following ionic compounds:

Ca3(PO4)2
Mn(NO3)3
CoCO3