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Al element X belongs to fourth period an...

Al element X belongs to fourth period and fifteenth group of the periodic table. Which of the following statements is true?

A

It has a completely filled s-orbital and a partially filled d-orbital

B

It has completely filled s- and p- orbitals anre a partially filled d-orbital

C

It has completely filled s- and p- orbitals and a half filled d-orbital.

D

It has a half-filled p-orbital and completely filled s- and d-orbitals.

Text Solution

Verified by Experts

The correct Answer is:
D
Element X is arsenic (As) and its electronic configuration is `[Ar]3d^(10) 4s^(2) 4p^(3)`.
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