In which species is the central atom not surrounded by exactly 8 valence electrons?

In which of the following species central atom is NOT surrounded by exactly 8 valence electrons ?

In which of the following species central atom is NOT surrounded by exactly 8 valence electrons ?

In which of the following species central atom is NOT surrounded by exactly 8 valence electrons ?

In which species does the central atom obey the octet rule?

In which species does the central atom have one or more lone pairs of valence electrons?

Which species has lone pair on central atom?

Statement I : In sulphur hexafluoride, the central atom has more than eight valence electrons. Statement II: The central atom can accommodate additional electron pairs by using outer vacant d orbitals.

In which species the hybrid state of central atom is/are sp^(3)d ?