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Chemistry, 30.09.2019 22:30 kayleigh2037

Rubidium is a soft, silvery-white metal that has two common isotopes, 85rb and 87rb with masses of 84.904 and 87.099 respectively. if the abundance of 85rb is 72.2% and the abundance of 87rb is 27.8%, what is the average atomic mass of rubidium? submit your answer with three decimal places.

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