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words most missed

Ion atom which has gained or lost electrons, a charged particle
Isotope Atoms which have the same atomic number BUT different atomic masses
empirical formula lowest whole number ration of a formula. All ionic compounds are written empirically
allotrope one,two or more different forms of an element in the same element in the same phase. ex graphite and diamond, O2 and Ozone O3
electrolyte a substance whose water solution will conduct electricity (ions)
entropy a measurement of the disorder or randomness of a system
LEO Lose electrons...Oxidation
GER Gain electrons...reduction
endothermic a chemical reaction that absorbs heat (heat in)
exothermic a chemical reaction that releases energy ( heat out)
excited state electrons in an atom occupy higher energy level even though lower levels are unoccupied
ground state electrons occupy the lowest available energy levels of an atom
Molarity M the concentration of a substance in moles per liter of solution
solution a homogeneous mixture of substances in the same physical state
solute the substance being dissolved
solvent the substance that dissolves the solute
saturated a solution containing the maximum amount of solute that will dissolve at a given temperature.
unsaturated a solution in which more solute can be dissolved at a given temperature
supersaturated a solution that contains more solute than would dissolve in a saturated solution at a given temperature
Created by: annpaige