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Uses of Lanthanides

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Question

Total number of $α$ -particles emitted in Actinium series is :

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Solution

The total number of $α$ - particles emitted in the Actinium series is 7. The number of beta particles emitted in the Actinium series is 4.
$_{92}^{235} U - 7 α - - \to - 4 β_{82}^{207} P b$

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