Rubidium has two naturally occurring isotopes, rubidium-85 (atomic mass = 84.9118 amu; abundance = 72.15%) and rubidium-87 (atomic mass = 86.9092 amu;. Calculate the atomic weight of rubidium.

Chemistry: Principles and Reactions
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Chapter2: Atoms, Molecules, And Ions
Section: Chapter Questions
Problem 21QAP: Bromine has two occuring isotopes: 79Br with atomic mass 78.9183 and 81Br with atomic mass 80.9163....
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Rubidium has two naturally occurring isotopes, rubidium-85 (atomic mass = 84.9118 amu; abundance = 72.15%) and rubidium-87 (atomic mass = 86.9092 amu;. Calculate the atomic weight of rubidium.

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