Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days
For Business Enquiry


Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number


Mon to Sat - 11 AM to 8 PM

Why half filled orbitals are more stable?

Asked by Nehan 4th August 2012, 6:58 PM
Answered by Expert
This is to do with the multiplicity of the state. If the shell is half full, the total spin (and therefore multiplicity) is at a maximum - all the electron spins are aligned. This means that the electrons tend to avoid each other - an often used analogy is cars going round a roundabout, if they all travel in the same direction, they tend to avoid each other.
When you add more electrons, the spins start to pair up. Basically, the cars coming in now are going the other way round the roundabout and often come close to each other. Electrons are negatively charged and repel each other, so having a state in which the electrons must get close is relatively high in energy. This is the basis of Hund's rule of maximum multiplicity.
Answered by Expert 4th August 2012, 11:16 PM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Chat with us on WhatsApp