The number of lone paris of electrons one the central atoms ofH_(2)O, SnCl_(2), PCl_(3) and XeF_(2) respectively are

The number of lone paris of electrons one the central atoms ofH_(2)O,

1.	The number of lone paris of electrons one the central atoms ofH_(2)O, SnCl_(2), PCl_(3) and XeF_(2) respectively are
Answer» 2,1,1,3 2,2,1,3 3,1,1,2 2,1,2,3 Solution :O is in Group16 . Last shell has 6 electrons . Two are shared with H-atoms . No of lone pairs on o = 2 Sn is in Group 14 . Last shell has 4 electrons . Two areshared . No. of lone pairs on Sn = 1 . P is in Group 15 . shell has 5 electrons . Three are shared with Cl atoms . No of lone pair on P = 1 Xeis in Group 18 . Lastshell has 8 electrons. Two are shared with two F atoms . No . of lone pairs on Xe = 3