Atomic Structure Question 258
Question: When $ 3d $ orbital is complete, the new electron will enter the [EAMCET 1980; MP PMT 1995]
Options:
A) $ 4p $ -orbital
B) $ 4f $ -orbital
C) $ 4s $ -orbital
D) $ 4d $ -orbital
Show Answer
Answer:
Correct Answer: A
Solution:
According to the Aufbau-s principle the new electron will enter in those orbital which have least energy. So here $ 4p $ -orbital has least energy then the others.
