The half-life of U238 for α-decay is 4.5×109 years. The number of d – InterviewSolution

1.	The half-life of U238 for α-decay is 4.5×109 years. The number of disintegrations per second that occur in 1 g of U238 is :(Avogadro number =6.023×1023 mo1−1)
Answer» The half-life of $U^{238}$ for $α$ -decay is $4.5 \times 10^{9} years$ . The number of disintegrations per second that occur in $1 g$ of $U^{238}$ is : (Avogadro number $= 6.023 \times 10^{23} {mo1}^{- 1}$ )

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