Hydrogen bonding

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NicoJones_1B
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Joined: Fri Aug 09, 2019 12:16 am

Hydrogen bonding

Postby NicoJones_1B » Fri Nov 08, 2019 6:24 pm

Why will hydrogen only form bonds with highly electronegative atoms?

Alan Wu
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Joined: Sat Sep 14, 2019 12:16 am

Re: Hydrogen bonding

Postby Alan Wu » Fri Nov 08, 2019 6:48 pm

Only highly electronegative atoms are strong enough (negative in charge) to attract the H atom, which has a positive dipole and literally acts like a proton.

sarahwu3a
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Joined: Sat Aug 17, 2019 12:17 am

Re: Hydrogen bonding

Postby sarahwu3a » Sat Nov 09, 2019 11:52 am

Hydrogen only forms hydrogen bonds with N, O, and F because they are the only elements with high enough electro negativities to attract it.

Amina Durrani 3G
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Joined: Sat Jul 20, 2019 12:16 am

Re: Hydrogen bonding

Postby Amina Durrani 3G » Sat Nov 09, 2019 1:13 pm

Yes because high electronegative atoms are stronger enough to attract H

Arianna Perea 3H
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Joined: Thu Jul 25, 2019 12:17 am

Re: Hydrogen bonding

Postby Arianna Perea 3H » Sat Nov 09, 2019 2:14 pm

If an H atom is connected to N,O, or F on one side but to for example C on the other be considered an attractive force?

Arianna Perea 3H
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

Re: Hydrogen bonding

Postby Arianna Perea 3H » Sat Nov 09, 2019 2:16 pm

do NOF attract H because they want an electron and H wants to lose it?

Amanda Mei 1B
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Joined: Sat Aug 24, 2019 12:16 am

Re: Hydrogen bonding

Postby Amanda Mei 1B » Sat Nov 09, 2019 2:47 pm

N, O, and F are the most electronegative elements (upper righthand corner of the periodic table). Hydrogen will only form hydrogen bonds with them because the electronegative atoms attract the electron cloud around hydrogen and leave hydrogen with a positive charge.

Kishan Shah 2G
Posts: 81
Joined: Thu Jul 11, 2019 12:15 am

Re: Hydrogen bonding

Postby Kishan Shah 2G » Sat Nov 09, 2019 3:18 pm

The high electronegative atoms will be the only ones strong enough to pull away the electron from hydrogen to form the H-bond.

Nicholas_Gladkov_2J
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Re: Hydrogen bonding

Postby Nicholas_Gladkov_2J » Sat Nov 09, 2019 6:04 pm

NicoJones_1B wrote:Why will hydrogen only form bonds with highly electronegative atoms?


In lecture, Dr. Lavelle, said that hydrogen bonds form only when a hydrogen atom is covalently bonded to N, O, F atoms and is close to another electronegative atom (I'm assuming N, O, F) that has a lone pair nearby.


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