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1) Rubidium is a soft, silvery-white metal that has two common isotopes, "Rb and Rb. If the abundance of Rb is 72.2% and the abundance of "Rb is 27.8%, what is the average atomic mass of rubidium?

1) Rubidium is a soft, silvery-white metal that has two common isotopes, "Rb and Rb. If the abundance of Rb is 72.2% and the abundance of "Rb is 27.8%, what is the average atomic mass of rubidium?

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1) Rubidium is a soft, silvery-white metal that has two common isotopes, "Rb and Rb. If the abundance of Rb is 72.2% and the abundance of "Rb is 27.8%, what is the average atomic mass of rubidium?
Transcribed Image Text:1) Rubidium is a soft, silvery-white metal that has two common isotopes, "Rb and Rb. If the abundance of Rb is 72.2% and the abundance of "Rb is 27.8%, what is the average atomic mass of rubidium?
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