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science
| Term | Definition |
|---|---|
| Valence Electrons | the electrons that are in the highest energy level of an atom and that are involved in chemical bonding |
| Electron Dot Diagram | A tiny negatively charged particale that moves around the outside of the nucleus of an atom |
| Chemical Bond | The force of attraction that holds two atoms together |
| ion | An atom or group of atoms that has become electrically charged |
| ionic bond | The attraction between oppositely charged ions |
| ionic compound | a compound that consist of positive and negative ions |
| polyatomic ion | an ion that is made up of more than one atom |
| chemical formula | symbols that show elements in a compound and the ratio of an atom |
| subscript | a number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound |
| crystal | a solid in which the atoms are arranged in a pattern that repeats again and again |
| convalent bond | a chemical bond formed when two atoms share electrons |
| molecule | a neutral group of two or more atoms held together by covalent bonds |
| metallic bond | a attraction between a positive metal and ion and the electrons controlling it |