Some questions on energy of orbitals

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The discussion centers on the degeneracy of orbitals, specifically questioning whether the px, py, and pz orbitals remain degenerate in the electron configuration 0=[He] 2s2 2px2 2py1 2pz1. It concludes that these orbitals are not degenerate due to the presence of differing electron occupancy. Additionally, the conversation touches on the inert pair effect and the order of the shielding effect for s, p, d, and f orbitals, although these topics remain less explored in the discussion.

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Ezio3.1415
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1. We know px,py,pz are degenerate orbitals... My question is suppose in
0=[He] 2s^2 2px^2 2py^1 2pz^1
Are the px,py,pz orbitals degenerate here?

2. What is the reason of inert pair effect?

3. What is the order of shielding effect for s,p,d,f?
 
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Oh... no one answered... Okay can anyone only answer 1 & 3...
 

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