Bond Strength and Electronegativity

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Sophia Dinh 1D
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

Bond Strength and Electronegativity

Postby Sophia Dinh 1D » Sun Nov 03, 2019 9:29 pm

How are bond strength and electronegativity related?

Naji Sarsam 1F
Posts: 104
Joined: Sat Aug 17, 2019 12:18 am

Re: Bond Strength and Electronegativity

Postby Naji Sarsam 1F » Sun Nov 03, 2019 9:37 pm

The relationship between bond strength and electronegativity is an indirect one to understand:

1.) Electronegativity refers to the tendency of an atom to attract and accept an electron.

2.) A bond is when two atoms share at least a pair of electrons. Bond strength is affected by two principles: the more skewed the electron distribution is to one atom (meaning more ionic character), the stronger it is; and the more electrons shared, the stronger it is.

One aspect then about bond strength which electronegativity relates to is the ionic character. The greater the electronegativity difference is between two atoms, the more the electron pairs will be skewed to the atom with the higher electronegativity. Thus, a greater electronegativity difference between the atoms means the bond has a greater ionic character, meaning it is stronger. The opposite then--where there is a lower electronegativity difference--entails a weaker bond.

PranaviKolla2B
Posts: 114
Joined: Fri Aug 30, 2019 12:17 am

Re: Bond Strength and Electronegativity

Postby PranaviKolla2B » Sun Nov 03, 2019 9:38 pm

What is the trend of electronegativity in terms of the periodic table? Does electronegativity increase as you go towards the right of the periodic table?

505306205
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Joined: Thu Jul 25, 2019 12:15 am
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Re: Bond Strength and Electronegativity

Postby 505306205 » Sun Nov 03, 2019 9:43 pm

PranaviKolla3G wrote:What is the trend of electronegativity in terms of the periodic table? Does electronegativity increase as you go towards the right of the periodic table?

The trend for electronegativity is that it increases diagonally from bottom left to the top right. Flourine, therefore, is the most electronegative atom.


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