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unit 3 Chemistry
Question | Answer |
---|---|
Non-polar Covalent | Electrons are shared equally by bonded atoms; balanced charge |
Ionic Bond | When electrons are transferred between a metal and nonmetal |
Polar covalent | Bonded atoms have an unequal attraction for shared electrons; unbalanced charge |
Metallic Bond | Delocalized electrons move freely among positively charged ions |
Covalent Bond | When electrons are shared between 2 nonmetals |
Poly atomic Ion | Charged group of covalently bonded atom |
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 |