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An alkaline earth metal is radioactive. ...

An alkaline earth metal is radioactive. It and its daughter element decay by emitting 3 `alpha`- particles in succession. In what group should the resulting element be formed?

A

`4`

B

`6`

C

`16`

D

`14`

Text Solution

Verified by Experts

The correct Answer is:
`(d)`
The finally stable element will be `._(82)Pb` after successive removel to `alpha-` particles. It belongs to `gp-14`
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