click below
click below
Normal Size Small Size show me how
Ions & Covalent Bond
Review of ions and ionic bonds
| Question | Answer |
|---|---|
| cations have this charge | positive |
| anions are in what groups | 5A , 6A , 7A |
| cations are in what groups | 1A , 2A , 3A |
| the overall charge of an ionic compound | neutral |
| says that elements want 8 valence electrons | octet rule |
| anions have this charge | negative |
| element that is the exception due to number of valence electrons | helium |
| ions that keep the same name as the element | cations |
| ions that change their name ending to "-ide" | anions |
| name of ions coming from Group 7A | halide |
| fastest method to finding the formula of an ionic compound | criss cross |
| chemical bond made by 1 cation and 1 anion | ionic |
| the number of valence electrons in main group elements equals this number | group number |
| innermost ; lowest energy electrons | core |
| outermost ; highest energy electrons | valence |
| ions come from a change in the number of this | electrons |
| bond made between 2 anions | covalent |
| bond made between 1 cation and 1 anion | ionic |
| prefix for 5 | penta |
| prefix for 9 | nona |
| prefix for 6 | hexa |
| prefix for 7 | hepta |