Q3 / 125 · BITSAT 2012 · Chemistry

Which of the following does not have valence electron in $3 d$ -subshell?

A
Fe(III)
B
$\mathrm{Mn}(\mathrm{II})$
C
$\mathrm{Cr}(\mathrm{I})$
Correct answer
D
$\mathrm{P}(0)$

Solution

$\mathrm{P}$ (At no. 15 ) has electronic configuration $1 s^{2}, 2 s^{2} p^{6}, 3 s^{2} p^{3},$ hence no electron in $d$ -subshell.

Hence, the correct answer is option: 'D'.

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