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An element (X) belongs to fourthh period...

An element (X) belongs to fourthh period and fifteenth group of the periodic table. Which one of the following is true regarding the outer electronic configuration of (X)? It has-

A

partially filled d-orbitals and completely filled s-orbital.

B

completely filled x-orbital and completely filled p-orbitals.

C

completely filled s-orbital and half filled p-orbitals

D

half-filled d-orbitals and completely filled s-orbital.

Text Solution

Verified by Experts

The correct Answer is:
C
The electronic configuration of (X) can be written as `X:1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(2)3d^(10)4p^(3)`
so, element (X) has completely filled s- and d-orbitals and half-filled p-orbitals.
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