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If bromine atom is available in the form of, say, two isotopes, \(_{35}\textrm{Br}^{79}\) (\(49.7\)%) and \(_{35}\textrm{Br}^{81}\) (\(50.3\)%), calculate the average atomic mass of bromine.
The formula to find average atomic mass is
a.
b.
c.
When substituting the given values in the formula, we get,
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