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An element , X has the following isotopi...

An element , X has the following isotopic composition : `^(200)X : 90%,^(199)X:8.0%,^(202)X:2.0%` The weighted average atomic mass of the naturally occurring element X is closest to naturally occurring element X is closest to

A

199 amu

B

200 amu.

C

201 amu

D

202 amu

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The correct Answer is:
B
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