Polar Covalent Bonds

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Shirley Liu 2I
Posts: 64
Joined: Fri Sep 28, 2018 12:16 am

Polar Covalent Bonds

Postby Shirley Liu 2I » Sun Nov 11, 2018 11:03 pm

Polar covalent bonds are covalent bonds in which electrons are not equally shared. As the difference in electronegativity increases the more ionic character the covalent bond has, but if the difference becomes greater than 2, would this "covalent bond" not be covalent at all and now completely ionic?

Jonathan Cheng 3C
Posts: 30
Joined: Fri Sep 28, 2018 12:23 am
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Re: Polar Covalent Bonds

Postby Jonathan Cheng 3C » Sun Nov 11, 2018 11:21 pm

Yes the rough guideline is if the difference in electronegativity is greater than 2, the bond is considered to be ionic

Adriana_4F
Posts: 74
Joined: Fri Sep 28, 2018 12:29 am

Re: Polar Covalent Bonds

Postby Adriana_4F » Sun Nov 11, 2018 11:21 pm

Yes, it would not be covalent anymore it would be ionic. The guidelines are: If the electronegativity difference is greater than 2 then it is an ionic bond. If the electronegativity difference is less than 1.5 then it would be a covalent bond. If the difference is between 1.5 and 2 then it would be uncertain whether the bond is covalent or ionic so one would have to look at other characteristics of the bond in order to determine what it is


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