First slide

Kinetics of nuclear reactions or nuclear chemistry

Question

In a radioactive series, a radioactive isotope decays to stable isotope. $_{90}^{232} Th$ decays by emission of six $α$ and four $β$ -particles. Stable isotope is

Moderate

A

$Pu-256$
B

$Th-232$
C

$Rn - 220$
D

$Pb-208$

Solution

$_{90}^{232} Th {\overset{- 6 α}{⟶}}_{78}^{208} X {\overset{- 4 β}{⟶}}_{82}^{208} Pb$

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