Atomic Structure Question 272
Question: The order of filling of electrons in the orbitals of an atom will be [CBSE PMT 1991]
Options:
A) $ 3d,,4s,,4p,,4d,,5s $
B) $ 4s,,3d,,4p,,5s,,4d $
C) $ 5s,,4p,,3d,,4d,,5s $
D) $ 3d,,4p,,4s,,4d,,5s $
Show Answer
Answer:
Correct Answer: B
Solution:
As per Aufbau principle.