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Atomic Mass

2. Atoms & Elements / Atomic Mass / Problem 3

Calculate the relative abundances of the isotopes of boron if Boron-10 has a mass of 10.0129 amu and Boron-11 has a mass of 11.0093 amu.

A

Boron-10 = 80.0%; Boron-11 = 20.0%

B

Boron-10 = 22.5%; Boron-11 = 77.5%

C

Boron-10 = 93.1%; Boron-11 = 6.84%

D

Boron-10 = 19.9%; Boron-11 = 80.1%

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