A periodic table has 18 groups numbered from 1 to 18. What will be the group number of the final daughter nucleus formed, if 63Eu150 shows sequential decay emitting 1α and 1β particles.

Engineering

Chemistry

Disintegration Series

Question

A periodic table has 18 groups numbered from 1 to 18. What will be the group number of the final daughter nucleus formed, if ₆₃Eu¹⁵⁰ shows sequential decay emitting 1α and 1β particles.

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${Eu}_{63}^{150} \overset{- α}{\to} x_{61}^{145} \overset{- β}{\to} {(\frac{1}{62})}^{146}$

From 58 to 71 all are 4f elements belong to 3rd group]