D-And F-Block Elements Ques 303
Question: A transition element
[ 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
Number of electrons in ground state
