| A | B |
|---|
| binary compound | a compound composed of only 2 elements |
| chemical bond | the force that holds together the atoms in a compound |
| chemical formula | a group of chemical symbols that tells the atoms in a compound and their ratios |
| chemically stable | describes an atom whose outermost energy level is filled with electrons, so that it does not form compounds under normal conditions |
| corrosive | any substance that attacks and alters metals, human tissue, or other materials |
| covalent | bond between atoms where the electrons are shared |
| hydrate | a crystal that contains water molecules |
| ion | a charged particle formed from an atom or atoms that have gained or lost electrons |
| ionic bond | type of bonding in which ions are held together by the strong attraction of their opposite charges |
| nonpolar molecule | a molecule in which the atoms have an equal attraction for electrons |
| oxidation number | the combining capacity of an element |
| polyatomic ion | a group of covalently bonded atoms that act together as one charged atom |
| polar molecule | a molecule in which one atoms has a stronger attraction for electrons that the other |
| toxic | any substance that can injure living tissue; a poison |
