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Lewis structure for POCl3

Posted: Tue Nov 20, 2018 7:24 pm
by Ethan Nishikawa 4D
For the Lewis Structure of POCl3, why is P in the middle?

Re: Lewis structure for POCl3

Posted: Tue Nov 20, 2018 8:15 pm
by Kathryn 1F
Because P has a lower ionization energy. O and Cl have roughly the same, so they all go around the outside

Re: Lewis structure for POCl3

Posted: Tue Nov 20, 2018 8:18 pm
by Layal Suboh 1I
I think P is in the middle because it is the least electronegative. When drawing lewis structures, the least electronegative atoms goes in the middle, which in this case, would be phosphorus because it is lower on the periodic table.

Re: Lewis structure for POCl3

Posted: Tue Nov 20, 2018 8:23 pm
by Shundeen Martinez 1D
It is the only one out of the three that has an expanded octet.

Re: Lewis structure for POCl3

Posted: Tue Nov 20, 2018 10:19 pm
by Katie Frei 1L
P is the central atom because it is the least electronegative in comparison to O and Cl, and it also has the ability to be an expanded octet, which makes the drawing of the lewis structure accurate.

Re: Lewis structure for POCl3

Posted: Tue Nov 20, 2018 10:51 pm
by Raj_Bains_2C
P is in the center because it has the lowest ionization energy out of the atoms in the structure.

Re: Lewis structure for POCl3

Posted: Tue Nov 20, 2018 10:59 pm
by 105002507
P is the least electronegative in comparison and therefore is the central atom. It also has the ability to be an expanded octet

Re: Lewis structure for POCl3

Posted: Thu Nov 29, 2018 1:48 am
by Elizabeth Kim 4E
Phosphorus is unique in that it has an expanded octet and is also the least electronegative which is why it is the central atom.