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6 Radioactivity

6 Radioactivity

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Question 2

A nucleus of lead-212 ( $82212Pb_{82}^{212}\text{Pb}$ ) undergoes a decay chain consisting of a single $β−\beta^{-}$ decay followed by a single $\alpha\,$ decay to form a final daughter nucleus. How many neutrons are in this final daughter nucleus?

A

$125$

B

$127$

C

$128$

D

$129$

Markscheme

6 Radioactivity Questions

GCSE
Physics
6 Radioactivity

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