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Ionic & Covalent
Term | Definition |
---|---|
Ionic Bond | The transfer of electrons from metals to nonmetals |
Covalent Bond | The sharing of electrons between nonmetals |
Single Bond | 2 electrons shared |
Double Bond | 4 electrons shared |
Triple Bond | 6 electrons shared |
Compound | 2 or more elements chemically combined |
Octet Rule | Atoms will gain, lose, or share electrons in order to have 8 electrons in their outer energy shell |
Stability | Full/complete outer energy level of valence electrons |
Ions | Atoms that have a charge due to having lost or gained electrons |
Cations | Positively charged ions; atoms or molecules that have lost e-; usually metals |
Anions | Negatively charged ions; atoms or molecules that have gained e-; usually nonmetals |
Oxidation Number | The charge of an ion within a compound |
Group 1 | elements have 1 valence e-; +1 charge |
Group 2 | elements have 2 valence e-; +2 charge |
Group 13 | elements have 3 valence e-; +3 charge |
Group 14 | elements have 4 valence e-; +/- 4 charge |
Group 15 | elements have 5 valence e-; -3 charge |
Group 16 | elements have 6 valence e-; -2 charge |
Group 17 | elements have 7 valence e-; -1 charge |
Group 18 | elements have 8 valence e-; no charge - stable |
Lewis Dot Diagrams | Diagram which includes the atomic symbol and only the valence e- |