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Mass number of two isotopes of an elemen...

Mass number of two isotopes of an element differ by 2 unit (A and A + 2) . Average atomic mass is 0.5 more than the lower mass number. What could be the ratio of the two isotopes.

Text Solution

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If the abundance of the isotope with mass number A and A + 2 are `n_1` and `n_2`, respectively, then
`(n_1A+n_2(A+2))/(n_1+n_2)=A+0.5`
(b) 3:1
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