| A | B |
|---|
| compounds | different elements chemically combined |
| properties of compounds | different than the properties of the elements in the compounds |
| subscript | number written below, tells the number of atoms of that element |
| chemical formula | gives elements and ratio of atoms of those elements |
| chemically stable atom | 8 electrons in outer shell |
| atoms want... | outer shell filled with 8 electrons |
| chemical bond | force that holds atoms together |
| what atoms will due to have a full outer shell | give, steal, or share electrons |
| Charge formed by group 1elements | +1 |
| Charge formed by Group 2 elements | +2 |
| Charge formed by Group 16 elements | -2 |
| Charge formed by Group 17 elements | -1 |
| charge on an atom when electrons are given away | positive |
| charge on an atom when electrons are taken | negative |
