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An element X loses one alpha- and two be...

An element `X` loses one `alpha-` and two `beta-` particles in three successive stages. The resulting element will be

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Text Solution

Verified by Experts

The correct Answer is:
B
Let the reaction is
`._(Z)X^(A) overset(-alpha)rarr ._(Z-2)A^(A-4)overset(-beta)rarr ._(Z-1)B^(a-4) overset(-beta)rarr ._(Z)C^(A-4)`
Therefore, `X` and `C` are isotope `i.e.,` same atomic number.
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