| A | B |
| anions | negatively charged particles formed when an atom accepts electrons |
| Ion | charged particles; formed when an atom gives away or accepts electrons (only valence) |
| cations | positively charged particles formed by giving away electrons |
| chemical bond | force of attraction that holds two or more atoms together |
| ionic bond | electrons have been transferred from one atom to another |
| electronegativity | attraction that one atom has for the electrons that are between it and another atom |
| polyatomic ions | groups of two or more atoms that are chared and they act as a group and occur naturally in a group |
| double covalent bonds | two atoms share four electrons |
| triple covalent bonds | six electrons beign shared |
| polar covalent | where on atom hogs electrons being shared |
| coordinate covalent | one atom donates a pair of electrons to the atom that it is sharing with |
| covalent bond | bond is formed by two or more atoms sharing electrons to complete an octet |
| single covalent bonds | 2 atoms share 2 electrons |
| diatomic elements | 2 of the same atom have joined/occur naturally |