Poly Atomic Ions

Question 1

Polyatomic ions to remember

Answer 1

Ammonium.  NH4. (+1)
Hydroxide.    OH (-1)
Nitrate.         NO3 (-1)
Carbonate.   CO3 (-2)
Sulfate.          SO4 (-2)
Phosphate.    PO4 (-3)

Question 2

Ionic bond vs covalent bond

Answer 2

Ionic Metal and Non metal

Covalent non metal and non metal