August 29

Today in class we talked about ions and ionic compounds
To form ions, atoms gain of lose electrons.
Positive ions are cations
Negative ions are anions
If an atom gains electrons it is reduced
If an atom loses electrons it is oxidized
Remember OIL RIG
We talked anout naming ionic compounds:
Cation named first, anion second
We learned how to write formulas

Homework:
Page 51 #19-23
Study for test on Tuesday 9/4/2007