Question

The atomic mass of Element B is 63.6 u. The only naturally occurring isotopes are B-63 and B- 65. The percent abundances of Element B are close to which pair of choices listed below? a. 31% B-63 and 69% B-65 b. 99% B-63 and 1% B-65 c. 69% B-63 and 31% B-65 d. 50% B-63 and 50% B-65

Answer 1

Answer:

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Explanation:

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