| A | B |
|---|
| Why do atoms bond together? | To become stable and fill energy levels |
| How many electrons does the 1st energy level have | 2 |
| How many electrons does the 2nd energy level have total | 10 |
| How many electrons does the 3rd energy level hold total | 18 |
| How do atoms fill energy levels? | Lose, gain, or share electrons |
| Ionic bond | Transferring electrons from one atom to another to form a bond |
| An ionic bond forms between a ___________ and __________. | Metal and non-metal |
| Positively charged | An atom that loses an electron in an ionic bond |
| Negatively charged | An atom that gains an electron in an ionic bond |
| Covalent Bond | Electrons are shared between atoms to fill energy levels |
| Polar Covalent Bond | Unequally sharing of an electron between atoms |
| Non-polar Covalent Bond | Equal sharing of an electron between atoms |
| A covalent bond forms between __________ and ___________. | Non-metals and non-metals. |
