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Rutherford is credited with the discovery of the atomic nucleus; however, the Rutherford model of atomic structure does not explain the Rydberg formula for the hydrogen emission lines. Bohr’s model of the hydrogen atom , proposed by Niels Bohr in 1913, was the first quantum model that correctly explained the hydrogen emission spectrum. Liquid hydrogen fluoride, liquid water,and liquid ammonia all have relatively high specific heats for suchsmall... Physical Chemistry Risks associated with adolescent pregnancy are highest for teens who become pregnant within a few years after o...