| A | B |
|---|
| electron dot diagram | Representation of the valence electrons. |
| ion | Atom that has lost or gained electrons. |
| anion | Atom that has gained electrons. |
| cation | Atom that has lost electrons. |
| chemical bond | Force that holds atoms or ions together. |
| ionic bond | Transfer of electrons between metals and non-metals. |
| chemical formula | Symbols and numbers used to show what elements a compound contains. |
| metal | To the left of the stair-steps, tend to give-up electrons. |
| non-metal | To the right of the stair-steps, tend to gain electrons. |
| valence electrons | Electrons in the outermost orbital (energy level). |
| covalent bond | Sharing of electrons beween non-metals. |
| compound | Substance made from two or more simpler substances that can be broken down. |
| molecule | Group of atoms joined together by covalent bonds. |
| polyatomic ion | Group of atoms covalently bonded together that has a positive or negative charge. |
| metallic bond | The attraction between a metalcation and the shared electrons that surround it. |
| alloy | Mixture of two or more metals. |
