The isotope 234 92 U undergoes five successive alpha decays. Identify the correc

Question

The isotope 23492U undergoes five successive alpha decays. Identify the correct decay chain.

23390Th --> 22988Ra --> 22586Rn --> 21884Po --> 21782Pb

22890Th --> 22888Ra --> 22886Rn --> 21884Po --> 21282Pb

23290Th --> 22888Ra --> 22886Rn --> 22084Po --> 21682Pb

23090Th --> 22688Ra --> 22286Rn --> 21884Po --> 21482Pb

23390Th --> 22988Ra --> 22586Rn --> 21884Po --> 21782Pb

22890Th --> 22888Ra --> 22886Rn --> 21884Po --> 21282Pb

23290Th --> 22888Ra --> 22886Rn --> 22084Po --> 21682Pb

23090Th --> 22688Ra --> 22286Rn --> 21884Po --> 21482Pb

Explanation / Answer

23090Th --> 22688Ra --> 22286Rn --> 21884Po --> 21482Pb

option D

alpha particle will reduce 2 proton and 4 nucleons

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