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Mark out the correct statement (s) :

A

Electrons within a sub shell for which `l gt 0` mean that the relatively greater electrostatic repulsion between two electrons in the same orbital within a sub shell as compared with occupancy of two orbitals having different `m_(l)` values.

B

Electrons in singly occupied orbitals tend to have their spins in the same direction so as to maximize the net magnetic moment

C

In the ground state, an atom adopts a configuration with the greatest number of unpaired electrons.

D

Electrons in different orbitals with parallel spins show mutual attraction, so electron-nucleus interaction is improved.

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The correct Answer is:
A, B, C
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