Chemistry, 09.02.2021 23:10, tay3270

1. Rubidium has 2 isotopes in nature, and the average atomic mass is 85.557 amu. Rb-85 has a relative abundance of 72.15%.
What is the relative abundance of the other isotope, Rb-87?
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1. Rubidium has 2 isotopes in nature, and the average atomic mass is 85.557 amu. Rb-85 has a relati...