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unit 3 vocabulary
Term | Definition |
---|---|
Non-polar Covalent | Electrons are shared equally by bonded atoms; balanced charge. |
Ionic Bond | When electrons are transferred between a metal and nonmetal. |
Covalent Bond | When electrons are shared between 2 nonmetals. |
Polar covalent | Bonded atoms have an unequal attraction for shared electrons; unbalanced charge. |
Metallic Bond | Delocalized electrons move freely among positively charged ions. |
Polyatomic Ion | Charged group of covalently bonded atoms. |
Octet Rule | Outermost valence shell needs 8 electrons for stability. |
Oxidation Number | Number assigned to the charge of an ion in building compounds. |
Stock system | Uses Roman numeral to indicate ion's charge. |
Electron Dot notation | Only valence electrons of an element are placed around the element symbol. |
Nomenclature | A naming system. |
Volatile | Readily evaporates into a gas. |