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Question

Question: The configuration of the valence orbital of an element with atomic number 22 is...

The configuration of the valence orbital of an element with atomic number 22 is

A

3d54sl3d^{5}4s^{l}

B

3d24s23d^{2}4s^{2}

C

4s14p14s^{1}4p^{1}

D

3d24s14p13d^{2}4s^{1}4p^{1}

Answer

3d24s23d^{2}4s^{2}

Explanation

Solution

: Atomic number 22 has the following configuration:

22S=1s22s22p63s23p64s23d222S = 1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^{2}