| A | B |
| Chemical Bond | A force that holds atoms together |
| Compound | Material that is made up of two or more different kinds of atoms joined by chemical bonds |
| Electron Dot Diagram | A model that represents valence electrons in an atom as dots around the element's chemical symbol |
| Valence Electrons | The outermost electron of an atom and participates in chemical bonding |
| Bond | A force that holds atoms together in a compound. |
| Chemical Formula | A group of chemical symbols and numbers that represent elements and numbers of atoms of each element that make up a compound |
| Covalent Bond | Forms when two atoms share one or more pairs of valence electrons |
| Molecules | A group of atoms held together by covalent bonding |
| Polar molecule | Has a slight positive end and a slight negative end because of unequal sharing of electrons |
| Ion | An atom that is no longer electrically neutral because it has lost or gained valence electrons |
| Ionic bond | An attraction between positively and negatively charged ions |
| Metallic bond | Forms when many metal atoms share their pooled valence electrons |