why half filled and fully filled atoms are more stable
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Because half filled and fully filled atoms doesn't have free electrons. so they cannot combine with other atoms due to lack of free electrons, this makes them more stable.
soniatyagi1:
r u sure
Haa
The half-filled and fully-filled orbitals are more symmetrical than any other configuration and symmetry leads to greater stability
u can say in this way also
thank u
what is the symmetrical method pls explain it is confusing topic for me
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I think it can be explained using quantum mechanics.
The motion of e-s with paired spins are said to be 'correlated'.That is,paired e-s move together.But unpaired e-s always remain comparatively farther from each other. As a result of this,paired e-s have higher energy and thus lesser stability,which are seen in the case of partially filled orbitals.
But in the case of unpaired e-s,repulsion is lesser and thus are more stable,which are seen in the case of half filled orbitals.
This is the reason why Cr has the electronic configuration as d5 s1 and not d4 s2.
The motion of e-s with paired spins are said to be 'correlated'.That is,paired e-s move together.But unpaired e-s always remain comparatively farther from each other. As a result of this,paired e-s have higher energy and thus lesser stability,which are seen in the case of partially filled orbitals.
But in the case of unpaired e-s,repulsion is lesser and thus are more stable,which are seen in the case of half filled orbitals.
This is the reason why Cr has the electronic configuration as d5 s1 and not d4 s2.
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