D-And F-Block Elements Ques 303

Question: A transition element $ X $ has a configuration $

[ Ar ]3d^{4} $ in its + 3 oxidation state. Its atomic number is [CBSE PMT 1996]

Options:

A) 25

B) 26

C) 22

D) 19

Show Answer

Answer:

Correct Answer: A

Solution:

Number of electrons in excited state $ {{X}^{+3}}=18+4=22 $

Number of electrons in ground state $ X=22+3=25 $ .



NCERT Chapter Video Solution

Dual Pane