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Multi-Electron Configurations and Orbital Diagrams

Which element...

Question

Which element has the electron configuration of $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{4}$ ?

A r

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O

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S

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T i

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U

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Solution

The correct option is C $S$
S (Z=16) has the electron configuration $1 s^{2} s^{2} 2 p^{6} 3 s^{2} 3 p^{4}$
The electronic configuration of Ar (Z=18) is $1 s^{2} s^{2} 2 p^{6} 3 s^{2} 3 p^{6}$
The electronic configuration of O (Z=8) is $1 s^{2} s^{2} 2 p^{4}$
The electronic configuration of Ti (Z=22) is $1 s^{2} s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{2}$
The electronic configuration of U (Z=92) is $[R n] 5 f^{3} 6 d^{1} 7 s^{2}$

Suggest Corrections

Similar questions

A

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{1}

B

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{4}

A

B

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{4}

H_{2} X

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

U

V

W

X

Y

U : 1 s^{2} 2 s^{2} 2 p^{3}

V : 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{1}

W : 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{4}

X : 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{5} 4 s^{2}

Y : 1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{10} 4 s^{2} 4 p^{6}

{Mg}^{2 +}

1 s^{2}

2 s^{2}

2 p^{6}

3 s^{2}

3 p^{4}

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