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Atom vs lone pair

Posted: Mon Jun 11, 2018 4:18 pm
by RichardValdez1L
Why does a lone pair of electrons push away bonds more than a typical atom. For example, "120 degrees" vs "less than 120 degrees"

Re: Atom vs lone pair

Posted: Mon Jun 11, 2018 4:23 pm
by Tarek Abushamma
Lone pairs have higher electron - electron repulsion and thus they take up more space than atoms, pushing the surrounding atoms closer together and lowing their bonding angle.

Re: Atom vs lone pair

Posted: Mon Jun 11, 2018 5:53 pm
by Chem_Mod
Yes, since lone pairs are concentrated closer to the central atom than bonding pairs.

Re: Atom vs lone pair

Posted: Mon Jun 11, 2018 6:46 pm
by nelquosey
lone pairs each have a negative charge, and they also have to respond to the charges of the atoms, making them push in the directions that they do push in. Think of it as a bunch of magnets of identical charges.