1. Tardigrade
  2. Question
  3. Chemistry
  4. Which of the following does not have valence electron in 3d - subshell?

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

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

AIIMSAIIMS 2002The d-and f-Block Elements

Solution:

Phosphorus (P) has electronic configuration

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

Therefore, no valence electron is present in the $3d$-sub shell.

$Fe (III)$ has electronic configuration :

$3 d^{5} 4 s^{0}$

$Cr(I): 3 d^{5} 4 s^{0}$

$Mn ( II ): 3 d ^{5} 4 s ^{\circ}$