Strengths of bonds

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Shanzey
Posts: 120
Joined: Wed Sep 18, 2019 12:20 am

Strengths of bonds

Postby Shanzey » Sun Nov 10, 2019 3:38 pm

How are we able to determine how strong each of the bonds are relative to one another?

Kyla Grunden 1L
Posts: 46
Joined: Sat Sep 07, 2019 12:16 am

Re: Strengths of bonds

Postby Kyla Grunden 1L » Sun Nov 10, 2019 3:45 pm

Bond strength is determined by a number of factors. Bonds are weakened if the atoms involved are large or if there are lone pairs on nearby atoms. Bond strength is also affected by the electronegativities of the atoms involved and their bond lengths (or resonance). Bond multiplicity or order (how many bonds there are) is also very influential. The more bonds there are, the shorter, and therefore stronger, the bonds are.

Rhea Shah 2F
Posts: 97
Joined: Thu Jul 25, 2019 12:17 am

Re: Strengths of bonds

Postby Rhea Shah 2F » Sun Nov 10, 2019 6:44 pm

Bond strength is dependent on a variety of factors. The greater the bond the number, the stronger the bond, meaning that a triple bond is stronger than a single bond. Resonance also stabilizes a chemical structure, and increases the strength of the bonds in the molecule. Lone pairs on the atoms repel each other, weakening the bonds. Atomic radius also affects bond strength, because if a nucleus cannot get close enough to the electrons, a weaker bond results.

Clarice Chui 2C
Posts: 101
Joined: Fri Aug 30, 2019 12:16 am

Re: Strengths of bonds

Postby Clarice Chui 2C » Sun Nov 10, 2019 9:22 pm

Another factor that affects bond strength is delocalization (related to resonance as said above).


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