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An isotone of `._(32)^(76)Ge` is-(a) `._(32)^(77)Ge`(b)`._(33)^(77)As` (c)`._(34)^(77)Se` (d)`._(34)^(78)Se`

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An isotone of `._(32)^(76)Ge` is-
(a) `._(32)^(77)Ge`
(b)`._(33)^(77)As`
(c)`._(34)^(77)Se`
(d)`._(34)^(78)Se`
A. `._(32)^(77)Ge`
B. `._(33)^(77)As`
C. `._(34)^(77)Se`
D. `._(34)^(78)Se`
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1 Answer

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Correct Answer - B::D
`._(33)^(77)As` and `._(34)^(78)Se` have same number of neutrons
`=(A-Z) "as" ._(32)^(56)Ge`. i.e.,44.
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