Q.
The sum of the number of lone pairs of electrons on each central atom in the following species is
$\left[ TeBr _{6}\right]^{2-},\left[ BrF _{2}\right]^{+}$and $\left[ XeF _{3}\right]^{-}$
(Atomic number: $F =9, Br =35, Te =52, Xe = 54$)
NTA AbhyasNTA Abhyas 2022
Solution:
Species Lone pair on central atom $\left[\right.TeBr_{6}\left]\right.^{2 -}$ 1 $BrF_{2}^{+}$ 2 $XeF_{3}^{-}$ 3
Total number of lone pair $= 6$.
| Species | Lone pair on central atom |
| $\left[\right.TeBr_{6}\left]\right.^{2 -}$ | 1 |
| $BrF_{2}^{+}$ | 2 |
| $XeF_{3}^{-}$ | 3 |