Jump to content

Aufbau–Hund–Pauli


Keysi
 Share

Recommended Posts

Hi guys, just wondering if anyone knows of a good way or a handy wee mnemonic to differentiate between these three principles?

 

I understand the concept of each one well enough ( for A level chemistry standards anyway) but if I got a question asking, for example, to state Hund's rule it could end up just being a stab in the dark which of the three I describe.

 

Thanks.

Link to comment
Share on other sites

  • 2 weeks later...

I mean the best way to remember each of the 3 for me is this...

 

Aufbau- Building up electrons to find ground state

Hund- is that all electrons must be placed into sub-shells before they can be paired.

Pauli Exclusion- no 2 electrons can have the same 4 QN

 

Aufbau itself is an abstract word when compared to normal english vernacular this should be able to be memorized on its own

 

Hund's rule you can think of the word hugs. there needs to be 2 people to hug. Therefore you can analogize that all electrons must be placed into a sub shell in order to hug another one... something like that

 

Pauli Exclusion the word exclusion in this should throw up flags as to what it entails. Its exclusive each electron is exclusive and therefore no other electrons can have the same SSN as another one...

 

Lol just trying to help I am not a pictorial studier or anything so this might help might not.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.