Question

A filled or half -filled set of p or d orbitals is spherically symmetric. Point out the species which has specrical symmetry:-

• A. Na
• B. C
• C. $C{l}^{-}$
• D. Fe

Answer 1

The correct option is A Na

Na configuration is [Ne]3s1 s orbital is half filled

C configuration is 1s2 2s2 2p2 p orbital is not half filled and full filled

$C{l}^{-}$ configuration is 1s2 2s2 2p5 3s2 p orbital is not half filled and full filled

Fe configuration is [Ar]3d6 4s2 d orbital is not half filled and full filled

So Na is spherically symmetric