NEET Physics Nuclei Questions Solved


An atomic nucleus Th90232 emits several α and β radiations and finally reduces to Pb82208. It must have emitted

(a) 4α and 2β              (b) 6α and 4β
(c) 8α and 24β            (d) 4α and 16β

(b) nα=A-A'4=232-2084=6

nβ=2nα-Z+Z'=2×6-90+82=4

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