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Which of the following statement(s) is/a...

Which of the following statement(s) is/are correct?

A

There is no probability of finding a `p_z`electron right at the nucleus

B

the orbital `d_z^2`has two lobes of electron density directed along the z axis and a ring of electron density centred in the xy plane

C

The orientation of p and d orbitals minimise electron electron repulsion in multi electron atoms

D

none of these

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