In which of the following does the central at | vedclass

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(B) The octet rule states that atoms tend to gain,lose,or share electrons to achieve a stable configuration of $8$ electrons in their valence shell.In

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$BF_3$

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(B) The octet rule states that atoms tend to gain,lose,or share electrons to achieve a stable configuration of $8$ electrons in their valence shell.In $BF_3$,the central Boron atom has $3$ valence electrons and forms $3$ covalent bonds with Fluorine atoms.This results in a total of $3 	imes 2 = 6$ electrons around the Boron atom.Since $6 In $CO_2$,$H_2O$,and $PCl_3$,the central atoms ($C$,$O$,and $P$ respectively) satisfy the octet rule.

In which of the following does the central atom not follow the octet rule?

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