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Bond Variations

Posted: Thu Nov 22, 2018 1:09 pm
by Stevin1H
How is the strength of bonds affected by the presence of lone pairs? Is the strength of a bond stronger or weaker with or without the presence of lone pairs?

Re: Bond Variations

Posted: Thu Nov 22, 2018 1:21 pm
by Courtney Quan 1C
Lone pairs weaken the strength of a bond because of electron repulsion - the lone pair electrons of an atom will repel the bonded electrons and such electron-electron repulsion will reduce the overall bond's strength.

Re: Bond Variations

Posted: Fri Nov 23, 2018 3:48 pm
by Michael Novelo 4G
Lone pairs on neighboring atoms repel each other and weakens the bond.

Re: Bond Variations

Posted: Fri Nov 23, 2018 7:18 pm
by angelagd3l
Do lone pairs also affect the way the model is oriented? Because of the repulsion?

Re: Bond Variations

Posted: Fri Nov 23, 2018 7:24 pm
by kamalkolluri
angelagd3l wrote:Do lone pairs also affect the way the model is oriented? Because of the repulsion?

Yes, they do because lone pairs repel the bonding pairs, which changes the orientation. The best example is how in a linear molecule, if you add a lone-pair, the molecule becomes bent.