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  4. The structure of [B e F4]2- is

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Q. The structure of $\left[B e F_{4}\right]^{2-}$ is

NTA AbhyasNTA Abhyas 2020Chemical Bonding and Molecular Structure

Solution:

The structure of $\left[\right.BeF_{4}\left]\right.^{2 -}$ is tetrahedral
The Be atom is $sp^{3}$ -hybridized.
Electronic structure of beryllium in $\left[\right.BeF_{2}\left]\right.$
Solution
[Two unpaired electrons form covalent bonds ( $\sigma $ -bonds) with two F atoms]
Electronic structure of beryllium in $\left[\right.BeF_{4}\left]\right.^{2 -}$
Solution
[Two $F^{-}$ ions, each donate an electron pair into empty $sp^{3}$ -hybrid orbital forming a coordinate bond].