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Topic: A (seemingly) basic energy-level question  (Read 1102 times)

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Offline ZanyCat

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A (seemingly) basic energy-level question
« on: May 26, 2013, 05:30:06 AM »
I'll use CO2 as an example.

So the energy-level diagram for the carbon has: one 1s orbital, two 2sp orbitals and two 2p orbitals, listed from lowest to highest energy.

Ignoring the 1s, there are 4 valence electrons. In my way of thinking, the lowest energy shells should be filled first, so we would have  :spinpaired:  :spinpaired: in the sp hybridised orbitals, and 'empty' 2p orbitals.
But clearly, there's a pi bond, so in reality we have  :spinup: :spinup: in the 2sp orbitals and  :spinup: :spinup: in the 2p orbitals.

Where is my thinking going wrong? Thanks!

Offline Corribus

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Re: A (seemingly) basic energy-level question
« Reply #1 on: May 26, 2013, 11:14:14 AM »
You also have electrons from the oxygen atoms.
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

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