promoted hybridization

$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$

505095793
Posts: 61
Joined: Fri Sep 28, 2018 12:25 am

promoted hybridization

What does it mean when an electron is promoted? Also, what effect does electron promotion play on the overall molecule or atom?

Esther Ahn 4I
Posts: 30
Joined: Fri Sep 28, 2018 12:29 am

Re: promoted hybridization

Electron promotion is when an electron absorbs a photon to jump from a low energy level to a higher energy orbital. This is important because when bonds are formed, energy is released and then the system becomes more stable. Thus, atoms provide energy to promote an electron and this would make it into an excited state which then can be solved using hybridization.

Sona Hakobyan 3J
Posts: 45
Joined: Fri Sep 28, 2018 12:25 am

Re: promoted hybridization

505095793 wrote:What does it mean when an electron is promoted? Also, what effect does electron promotion play on the overall molecule or atom?

I don't think this is something we need to know as Dr. Lavelle has not covered this topic in class.

Shivangi_2J
Posts: 65
Joined: Fri Sep 28, 2018 12:15 am

Re: promoted hybridization

When an electron is promoted it is relocated to a higher energy orbital. Although it takes energy to promote electron, it eventually results in bonding and a more stable molecule. (this is why promotion will only take place if the overall change is towards lower energy). Promotion happens in carbon for example when an electron in the 1s is "promoted" to 2p to allow carbon to make 4 bonds.

804994652
Posts: 68
Joined: Fri Sep 28, 2018 12:26 am

Re: promoted hybridization

It is simply when an electron goes from a lower to higher energy level. Energy is released (negative).