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

CHEMISTRY · Single correct · A Level · Chemistry · Bonding · Bonding

Problem

In which of the following species central atom is NOT surrounded by exactly 8 valence electrons? (1)

\text{BF}_4^-

(2)

\text{NCl}_3

(3)

\text{PCl}_4^+

(4)

\text{SF}_4