ester07jm ester07jm

12-10-2022
Chemistry

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Rubidium has two common isotopes, 85Rb and 87Rb. If a 1000 atom pile of Rubidium
has 722 atoms of Rubidium-85 and 278 atoms of Rubidium-87, what is the atomic mass
of Rubidium?

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maría sergio, ¿quieres hacer diligencias ahora o por la tarde?