Which of the d-block elements are not co...

Which of the d-block elements are not considered as transition elements ?

Text Solution

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`Zn(3d^(10)4s^(2)), Cd(4d^(10)5s^(2))` and `Hg(5d^(10)6s^(2))` are not considered as transition elements because unlike transition elements, they always have completely filled (n - 1)d-orbitals.

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Which is not s-block element ?

A

`[Ar]4s^(2)3d^(10)4p^(6)5s^1`

B

`1s^(2)2s^(2)2p^1`

C

`[He]2s^(2)2p^(6)3s^1`

D

None of these

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