The sum of the number of lone pairs of electrons on each central atom in the following species is $ \left[T e B r_{6}\right]^{2-},\left[B r F_{2}\right]^{+}, S N F_{3} $ and $ \left[X e F_{3}\right]^{-} $[Atomic number : $ N=7, F=9, S=16, B r=35, T e=52, X e=54] $

Question

The sum of the number of lone pairs of electrons on each central atom in the following species is $ \left[T e B r_{6}\right]^{2-},\left[B r F_{2}\right]^{+}, S N F_{3} $ and $ \left[X e F_{3}\right]^{-} $[Atomic number : $ N=7, F=9, S=16, B r=35, T e=52, X e=54] $,

MARKS App · Accepted Answer

Number of σ -bonds formed by central metal atom/ ion Number of lone pairs on central metal atom/ ion (i) In ⁡ T e B r 6 2 - 6 1 (ii) In ⁡ B r F 2 + 2 2 (iii) In ⁡ S N F 3 4 0 (iv) In ⁡ X e F 3 - 3 3 ⇒ Total number of lone pairs of electrons = 1 + 2 + 0 + 3 = 6

	Number of $σ$ -bonds formed by central metal atom/ ion	Number of lone pairs on central metal atom/ ion
(i) ${In [T e B r_{6}]}^{2 -}$	6	1
(ii) $In {[B r F_{2}]}^{+}$	2	2
(iii) $In S N F_{3}$	4	0
(iv) $In {[X e F_{3}]}^{-}$	3	3

Search any question & find its solution

Looking for more such questions to practice?