Topics discussed in today's lecture

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Jennifer Guzman 4C
Posts: 38
Joined: Wed Feb 14, 2018 3:01 am

Topics discussed in today's lecture

Postby Jennifer Guzman 4C » Mon Oct 22, 2018 2:19 pm

Hi all!

I woke up extremely sick this morning and missed today's lecture. Could someone please inform me about the topics that were discussed or the pages we went over from the sixth edition. It would be extremely appreciated. Thank you !

Mindy Kim 4C
Posts: 65
Joined: Fri Sep 28, 2018 12:25 am

Re: Topics discussed in today's lecture

Postby Mindy Kim 4C » Mon Oct 22, 2018 2:23 pm

We discussed:
writing electron structures (configurations) of atoms: Pauli Exclusion Principle, Hund's Rule, Aufbau/Building-Up Principle
order of orbitals (based on which state has the lower energy)
exceptions to electron configuration rules

I would recommend reading P. 44 to P.48.

Laura Gong 3H
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Joined: Fri Sep 28, 2018 12:26 am
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Re: Topics discussed in today's lecture

Postby Laura Gong 3H » Mon Oct 22, 2018 2:26 pm

Today we covered writing electron configurations as well as Pauli Exclusion Principle, Hund's Rule, and the Aufbau Principle. We practice writing the electron configurations for elements Carbon, Silicon, Scandium.
We need to know the s-Block, p-Block, and 1st row of the d-Block and that after 4s state is occupied and electron enter 3d state, the 3d state is lower in energy than 4s.
We also need to know the exceptions that half full d5 and full d10 subshell have lower energy, so for Chromium and Copper the e-configurations would be:
Cr:[Ar]3d54s1 and Cu:[Ar]3d104s1.

Jennifer Guzman 4C
Posts: 38
Joined: Wed Feb 14, 2018 3:01 am

Re: Topics discussed in today's lecture

Postby Jennifer Guzman 4C » Mon Oct 22, 2018 2:53 pm

Thank you so much!


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