Size

Moderators: Chem_Mod, Chem_Admin

Clara Cho 2K
Posts: 103
Joined: Wed Sep 18, 2019 12:18 am

Size

Postby Clara Cho 2K » Sun Nov 10, 2019 11:34 pm

How does size affect bond length?

Sidharth D 1E
Posts: 98
Joined: Sat Aug 24, 2019 12:17 am

Re: Size

Postby Sidharth D 1E » Sun Nov 10, 2019 11:36 pm

The bigger the atoms are that are bonded together, the larger the bond length due to the electron-electron repulsions of the electron shells that distance the nucleus of an atom from the valence electrons that are involved in the bonding.

Petrina Kan 2I
Posts: 102
Joined: Fri Aug 30, 2019 12:17 am

Re: Size

Postby Petrina Kan 2I » Sun Nov 10, 2019 11:38 pm

Bond distance/length increases with atomic size. For example, PF3 and NF3 have the same number of valence electrons but PF3 has a longer bond length bc P is large in atomic size/radius than F.

005162520
Posts: 101
Joined: Tue Sep 24, 2019 12:17 am

Re: Size

Postby 005162520 » Sun Nov 10, 2019 11:43 pm

Does bond length also affect how strong the bond is?

Serena Siddiq 3D
Posts: 51
Joined: Fri Aug 30, 2019 12:17 am

Re: Size

Postby Serena Siddiq 3D » Sun Nov 10, 2019 11:53 pm

The larger the radius of the atoms, the farther each of their centers are apart, and therefore, they have a longer and weaker bond length than smaller radius atoms. The smaller the radius of the atoms, the closer their centers are, and therefore, they have a stronger and shorter bond length than larger ones. Hope this helps clear it up!

aishwarya_atmakuri
Posts: 101
Joined: Sat Jul 20, 2019 12:15 am

Re: Size

Postby aishwarya_atmakuri » Sun Nov 10, 2019 11:56 pm

Larger size means larger bond length.

rohun2H
Posts: 100
Joined: Wed Sep 18, 2019 12:19 am

Re: Size

Postby rohun2H » Mon Nov 11, 2019 1:39 am

As atomic radius increases, bond length also increases.

pmokh14B
Posts: 107
Joined: Sat Aug 17, 2019 12:15 am

Re: Size

Postby pmokh14B » Mon Nov 11, 2019 1:40 am

The larger the size of the atoms, the more likely their bond length will be greater.

Areli C 1L
Posts: 95
Joined: Wed Nov 14, 2018 12:19 am

Re: Size

Postby Areli C 1L » Mon Nov 11, 2019 6:00 am

005162520 wrote:Does bond length also affect how strong the bond is?


As Serena Siddiq said

"The larger the radius of the atoms, the farther each of their centers are apart, and therefore, [they have a longer and weaker bond length than smaller radius atoms]. The smaller the radius of the atoms, the closer their centers are, and therefore, [they have a stronger and shorter bond length than larger ones]. Hope this helps clear it up!"

AprilPaz
Posts: 51
Joined: Wed Sep 18, 2019 12:18 am

Re: Size

Postby AprilPaz » Mon Nov 11, 2019 8:49 am

As an atom increases, they have more electrons which causes more electron repulsion.

Joel Meza 3I
Posts: 86
Joined: Wed Sep 30, 2020 9:56 pm

Re: Size

Postby Joel Meza 3I » Sat Nov 14, 2020 8:11 pm

005162520 wrote:Does bond length also affect how strong the bond is?


Yes, the larger a bond length the further two atoms are and the weaker than bond is.

Jason_John_2F
Posts: 86
Joined: Wed Sep 30, 2020 9:54 pm

Re: Size

Postby Jason_John_2F » Sat Nov 14, 2020 8:30 pm

bonds become weaker the longer they are

Ethan Goode 2H
Posts: 122
Joined: Wed Sep 30, 2020 9:51 pm

Re: Size

Postby Ethan Goode 2H » Sat Nov 14, 2020 8:32 pm

Size effects bond length in a way that as the size of the atoms grow, the bond length gets larger. This is in part due to the fact that in bigger atoms, there is more space between the bond of electrons and the positive protons in the nucleus, so there is less pull bringing them closer.

Nhu Pham-Dis3G
Posts: 50
Joined: Wed Feb 26, 2020 12:15 am

Re: Size

Postby Nhu Pham-Dis3G » Sun Nov 15, 2020 2:39 pm

When two atoms are larger, the bonds between them are further away, therefore it is weaker. Similarly, when two smaller atoms are bonded together, their bonds are closer together and so the bonds are stronger.


Return to “Bond Lengths & Energies”

Who is online

Users browsing this forum: No registered users and 1 guest