Larger to weaker bond correlation

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Henry Krasner 1C
Posts: 64
Joined: Fri Sep 28, 2018 12:15 am

Larger to weaker bond correlation

Postby Henry Krasner 1C » Thu Nov 08, 2018 11:30 pm

In lecture, we learned that larger atoms indicates a larger bond/larger distance, which in turn indicates a weaker bond.
What is the reasoning behind the larger bond resulting in a weaker bond?

Yousif Jafar 1G
Posts: 59
Joined: Thu May 10, 2018 3:00 am

Re: Larger to weaker bond correlation

Postby Yousif Jafar 1G » Fri Nov 09, 2018 12:29 am

The larger the atom, the farther the bond is from the nucleus. This makes the attraction weaker as the inner electrons shield the valence electrons in the bond and they feel less pull to the larger molecules. This causes the bond to be weaker.

Marwan Masri 3B
Posts: 31
Joined: Fri Sep 28, 2018 12:23 am

Re: Larger to weaker bond correlation

Postby Marwan Masri 3B » Fri Nov 09, 2018 12:34 am

Larger atomic radii lead to more effective shielding of electrons , which means less electrostatic attraction. This leads to a weaker bond.

Nicholas Le 4H
Posts: 74
Joined: Fri Sep 28, 2018 12:24 am

Re: Larger to weaker bond correlation

Postby Nicholas Le 4H » Fri Nov 09, 2018 9:23 am

A larger bond results in a weaker bond due to the fact that there is more distance the bond is covering. Using coulomb's law, F=(K(q1*q2))/r^2, as distance, r, increases, the force becomes weaker as it is inversely proportional to force.


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