3.01 - Writing Formulas for Binary Ionic Compounds - 20:51

KEY CONCEPT:

When you combine a metal and a non-metal, use the 5 Step Cross over Rule to put together your formula

3.02 - Naming Ionic Compounds - 5:48

KEY TERMS: reverse cross over rule, metal, non-metal

5.04 - Double Displacement Reactions - 6:13

KEY CONCEPTS:

pairing metals and non-metals

metals switch places with the other metal in the reaction

Don't forget the 5 Step Cross Over Rule! Don't forget to balance the equation.

5.03 - Single DIsplacement Reactions - 18:52

KEY CONCEPTS:

metals switch with metals**
non-metals switch with non-metals

**look at the Activity Series if metal would switch with metal. If LONELY metal is higher in the Activity series than the metal paired with the non-metal can the metal switch places. If the LONELY metal is lower in the series, NO REACTION will take place.

Don't forget to balance equations! Don't forget the 5 Step Cross Over Rule

1.08 - Atoms vs. Ions - 9:34

KEY TERMS:
cation = positively charged atoms (metals)
anion = negatively charged atoms (non-metals)
metals lose electrons, non-metals gain electrons

1.07 - Anatomy of the Atom - 20:50

KEY TERMS: valence electrons, groups, periods, orbitals, shells, metals, non-metals
#of neutrons=atomic mass - atomic number
Group#=valence electrons
Period#=#of orbitals