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htneT
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I am fully aware that a half filled p sub-shell is stable due to no repulsion as electrons first occupy the orbitals singly before pairing up according to Hunds rule, why is that however a fully occupied p sub-shell with 6 electrons is also considered stable? Where as a filled s sub-shell with 2 electrons is said to undergo e-e repulsion, hence the I.E value of He is less than that of Hydrogen's I.E by a factor of 2 (90% to be exact).
In short: Why is a full p sub-shell with 6 electrons not said to undergo e-e repulsion (considered stable), whereas a full s sub-shell with 2 electrons is said to undergo e-e repulsion (unstable).
In short: Why is a full p sub-shell with 6 electrons not said to undergo e-e repulsion (considered stable), whereas a full s sub-shell with 2 electrons is said to undergo e-e repulsion (unstable).