Year 12s: what will be the first way you research your future options? >>

Transition Metal Electronic Configuration (Edexcel AS)

Hi guys!
I know that the sub-shells are filled in this order:
1s<2s<2p<3s<3p<4s<3d<4p<4d
Some elements do follow Aufbau's principle while some don't, why is that?
How to write the electronic configuration of transition metals from Scandium to Zinc?
Which sub-shell is filled first 4s or 3d and why?
And finally why does 3d come after 4s?

Thanks!! :smile:

Reply 1

TSR Learn Together

Official Rep

Hi there,

While you're waiting for an answer, did you know we have 300,000 study resources that could answer your question in TSR's Learn together section?

We have everything from Teacher Marked Essays to Mindmaps and Quizzes to help you with your work. Take a look around.

If you're stuck on how to get started, try creating some resources. It's free to do and can help breakdown tough topics into manageable chunks. Get creating now.

Thanks!

Not sure what all of this is about? Head here to find out more.