Exceptions  [ENDORSED]

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Postby tiffanyteguh1C » Thu Oct 26, 2017 7:37 pm

Aside from the Copper and Chronium, are there any exceptions that we need to be aware of?

Alex Leve 3F
Posts: 20
Joined: Fri Sep 29, 2017 7:07 am

Re: Exceptions

Postby Alex Leve 3F » Thu Oct 26, 2017 8:22 pm

I believe copper and chromium are the only exceptions that we will need to know for test 3.

Ammar Amjad 1L
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Re: Exceptions

Postby Ammar Amjad 1L » Fri Oct 27, 2017 7:04 pm

Yeah, you only need to know copper and chromium.

Rithik Kumar 3E
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Joined: Fri Sep 29, 2017 7:06 am

Re: Exceptions

Postby Rithik Kumar 3E » Fri Oct 27, 2017 10:23 pm

Copper and Chromium are the only exceptions we need to be aware of as of now. They are exceptions due to the small difference in energy between the 3d and 4s orbitals. Thus it would be energetically stable for the 3d orbitals to be either half filled or fully filled as oppose to the 4s orbital being full.

Dylan Mai 1D
Posts: 70
Joined: Sat Jul 22, 2017 3:00 am

Re: Exceptions  [ENDORSED]

Postby Dylan Mai 1D » Sat Oct 28, 2017 11:54 am

Regarding periodic trend exceptions, at a peer learning session I learned that carbon and oxygen are exceptions to e- affinity and ionization energy respectively because carbon wants to gain 1 e- to have a half filled 2p and oxygen wants to lose an e- for the same reason

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