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Asked by Karan Singh Last Modified
Answer 
Central atom is B
Atomic no. of B : 5
Electronic configuration of B : 1s2 2s2 2p1
Thus, for forming three bonds with three fluorine atoms, the paired electrons on 2s orbital gets excited and the ground state electronic configuration of B becomes
1s2 2s1 2p 2
still, one 2p orbital remains empty which has the tendency to accept an electron pair and thus behaves as a lewis acid.
read lessBecause Boron is 13th group element and it is trivalent.. after forming three bonds with fluorine, the total number of electrons will be 6. Therefore to complete the octet configuration, it will accept a pair of electrons.
According to Lewis concept, electron pair acceptors are called Acids.. so BF3 is acting as Lewis acid..
read lessBecause Boron is 13th group element and it is trivalent.. after forming three bonds with fluorine, the total number of electrons will be 6. Therefore to complete the octet configuration, it will accept a pair of electrons.
According to Lewis concept, electron pair acceptors are called Acids.. so BF3 is acting as Lewis acid..
read lessBecause Boron is 13th group element and it is trivalent.. after forming three bonds with fluorine, the total number of electrons will be 6. Therefore to complete the octet configuration, it will accept a pair of electrons.
According to Lewis concept, electron pair acceptors are called Acids.. so BF3 is acting as Lewis acid..
read less
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