| A | B |
| chemical bonding | the joining of atoms to form new substances |
| chemical bond | an interaction that holds two atoms together |
| valence electron | an electron in the outermost energy level of an atom |
| ionic bonds | is a bond tat forms when electrons are transferred from one atom to another atom |
| ions | are charged particles that form when atoms gain or lose electrons |
| crystal latice | the regular pattern in which a crystal is arranged |
| cluctility | the ability to be drawn into wires |
| malleability | the ability to be hammered into sheets |
| diatomic molecules | molecules made up of two atoms |
| diatomic element | elements that are formed in nature as diatomic molecules |
| metallic bond | is a bond formed by the attraction between positively charged metal ions and electrons in the metal |
| molecule | the smallest unit of a substance that keeps all of the physical and chemical properties of that substance |
| atomic number | is the number of protons in an atom |
| covalent bond | forms when atoms share one or more pairs of electrons |
| electron dot diagram | a mode that shows only valence electrons in an atom |
| group | a vertical column of elements in the periodic table |
| bonding energy | compounds don't happen without energy |