Question about last lecture

Moderators: Chem_Mod, Chem_Admin

Ayush Ray 1I
Posts: 53
Joined: Sat Sep 14, 2019 12:15 am

Question about last lecture

Postby Ayush Ray 1I » Sat Oct 19, 2019 2:08 pm

When Dr. Lavelle was writing the electron configuration for Carbon, he changed it from 1s^2 2s^2 2p^2 to1s^2 2s^2 2px^1 2py^1. Why did he make the change? I missed when he talked about it.

BritneyP- 2c
Posts: 101
Joined: Sat Sep 14, 2019 12:15 am

Re: Question about last lecture

Postby BritneyP- 2c » Sat Oct 19, 2019 2:15 pm

So, according to Pauli Exclusion Principle, it is better to fill up electron going in the same direction first as they would have lower energy potentials. So instead of filling up the 1px orbital completely, he added the other electron to the 1py orbital, as there is less energy.

Joowon Seo 3A
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am
Been upvoted: 1 time

Re: Question about last lecture

Postby Joowon Seo 3A » Sat Oct 19, 2019 2:16 pm

Both are correct, but the other one is more specific since it showed each electron in each subshell. The problem in the first one is that one could misunderstand and put 2 electrons in one subshell before filling all of the other ones first.

AGulati_4A
Posts: 74
Joined: Sat Sep 07, 2019 12:19 am

Re: Question about last lecture

Postby AGulati_4A » Sat Oct 19, 2019 2:25 pm

Just be careful though. He said this specificity is fine for the p orbital but he didn't recommend doing this for the d orbital as it can get complicated and we become more prone to making mistakes

Ayush Ray 1I
Posts: 53
Joined: Sat Sep 14, 2019 12:15 am

Re: Question about last lecture

Postby Ayush Ray 1I » Sat Oct 19, 2019 3:04 pm

So for future tests and exams, should we use the second method only?


Return to “Electron Configurations for Multi-Electron Atoms”

Who is online

Users browsing this forum: No registered users and 1 guest