Chemistry, 26.10.2019 03:43 HaJEReMY5170
The atomic mass of element a is 63.6 atomic mass units. the only naturally occurring isotopes of element a are a-63 and a-65. the percent abundances in a naturally occurring sample of element a are closest to
(1) 31% a-63 and 69% a-65
(2) 50% a-63 and 50% a-65
(3) 69% a-63 and 31% a-65
(4) 100% a-63 and 0% a-65
Answers: 3
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The atomic mass of element a is 63.6 atomic mass units. the only naturally occurring isotopes of ele...
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