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Lanthanoid are:...

Lanthanoid are:

A

`14` elements in the sixth period (`at.no .90` to `103`) that have4f-subshell

B

`14` elements in the seventh period `(at.no .90` to `103 )` that have `5f-`subshell

C

`14` elements in the sixth period (`at.no .58` to `71`) that have4f-subshell

D

`14` elements in the seventh period (`at.no .58` to `71`) that have4f-subshell

Text Solution

Verified by Experts

The correct Answer is:
C

`14` lanthanoids in `VI` period `(58` to `71)`.
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