1.

A nuclide of an alkaline earth metal undergoes radioactive decay by emissio of the alpha-particles in succession. The group of the periodic table to which the resulting daughter element would belong is

Answer»

`Gr.14`
`Gr.16`
`Gr.4`
`Gr.6`

Solution :`UNDERSET(Gr.2)(._(Z)A^(M)) overset(-alpha)rarr underset(Gr.18)(._(Z -2)B^(M-4)) overset(-alpha)rarr underset(Gr.16)(._(Z-4)C^(M -8))`


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