The element lithium has an atomic weight of 6.941 amu. There are only two isotopes of lithium,a6Li with a mass of 6.0151223 amu anda7Li with a mass of 7.0160040 amu. What are the percent isotopic abundances of lithium?

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Q: Question attached

A: Ans: Rb-85 = 72.17% = 0.7217 * 84.91 amu = 61.2795 Rb-87 = 27.83% = 0.2783 * 86.91 amu = 24.1871

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Q: The element lithium has an atomic weight of 6.941 amu. There are only two isotopes of lithium, Li…

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Q: The element lithium has an atomic weight of 6.941 amu. There are only two isotopes of lithium, ©Li…

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Q: information

A: This question is related to abundance of isotopes.

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Group 14 Elements

The following elements come under group 14 of the periodic table.