Ionic Bonding Naming and formula writing. Mrs. Kay Chemistry 11 Read pages 158-168. Atoms of different elements have different numbers of electrons Each shell is filled up before electrons move to the next shell found further away from the nucleus
Read pages 158-168
Sodium has 1 valence electron
Ex: CaCl2 The 2 is a subscript, it shows that 2 atoms of chlorine bond with one atom of calcium.
Zero Sum Rule: the charges need to add up to zero
Name the metal:
Name the non-metal: