Download the app


Consider the following electronic configuration 

this configuration violates

Remember concepts with our Masterclasses.

80k Users
60 mins Expert Faculty Ask Questions
Hund's rule only
Pauli's principle and Aufbau's principle only
Hund's rule and Pauli's principle only
Aufbau's principle, Hund's rule and Pauli's principle

Ready to Test Your Skills?

Check Your Performance Today with our Free Mock Tests used by Toppers!

detailed solution

Correct option is C

Aufbau's principle is not violated;(1)In ‘1s’ orbital both electrons have same spin;This violates Pauli's principle;(2)In ‘2p’ subshell all the three unpaired electrons in degenerate orbitals must have parallel spin to have maximum exchange energy. This is Hund's rule. But one of the unpaired electron has opposite spin. This violates Hund's rule.

Talk to our academic expert!


Are you a Sri Chaitanya student?


Create Your Own Test
Your Topic, Your Difficulty, Your Pace

Similar Questions

The above configuration violates

phone icon
whats app icon