Number of lone pairs on bonded atoms in $$PCl3$$ molecule is ‘X’. Number of lone pairs on central atom of $$PCl3$$ molecule is ‘Y’. Difference between X and Y is

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Infinity Learn · Accepted Answer

Number of electron $$pairs(EP)=V+M-C+A2$$; $$V=Group$$ number of central atom; $$M=-H$$, $$-X$$, $$-OH$$....monovalent groups attached to central atom ; $$C=Charge$$ of cation ; $$A=Charge$$ of anion ; $$V=2$$,$$3$$,$$4$$,$$5$$,$$6$$,$$7$$,$$8$$ respectively for $$2nd$$ , $$13th$$, $$14th$$,$$15th$$, $$16th$$,  $$17th$$, $$18th$$ group elements ; Number bond pairs, $$BP(according$$ to VSEPR $$theory)=Number$$ of atoms directly attached to central atom;                                                                                                   $$=4$$,$$3$$,$$2$$ respectively in $$CH4(CX4)$$, $$NH3($$ $$PX3$$ $$)$$, $$H2O$$ ; Number lone pairs on central $$atom(LP)=EP-BP$$ ;                                                                           $$=0$$,$$1$$,$$2$$ respectively in  $$CH4(CX4)$$, $$NH3$$ $$($$ $$PX3$$ $$)$$, $$H2O$$ ; $$NH3(NX3)$$....$$PX3$$,$$AsX3$$,$$SbX3$$,$$BiX3$$,$$-$$'$$3$$' bp $$+$$'$$1$$' lp  on central atom ; $$sp3-Pyramidal$$ ; $$RX3---10$$   lone $$pairs/molecule--9$$   lone pairs on bonded $$atoms--R--15th$$ group element ;

Number of lone pairs on bonded atoms in PCl3 molecule is ‘X’. Number of lone pairs on central atom of PCl3 molecule is ‘Y’. Difference between X and Y is

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