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Class notes CHEM 121: Chapter 8

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This chapter relates back to chapter 2 (lewis structures) and Chapter 7 (electronic configuration). We study how some molecules are able to have double bonds and why some can’t create double bonds.

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Institution: University of British Columbia (UBC )
Study: Food Nutrition & Health
Course: CHEM 121 (CHEM121)

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Uploaded on: December 27, 2022
Number of pages: 13
Written in: 2022/2023
Type: Class notes
Professor(s): Laura stirchak
Contains: All classes

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Chapter 8: Molecular Orbital Theory

11/7/2022

, Limitations with USEDR

↳>resource structures will make it bent

V

-
this
↳ But is also another way of drawing [N5] where it is linear

Molecular orbital
Theory

·
orbitals of molecules

↳) wave function superpositions
↳) superpositions change location of electron density

Example: Hd (hydrogen gas) Is Hydrogen

H atOm #atom

& ⑧
M
It.? # ↑
is (
A
-
super position
graph

bond formed
->

graph
~ epresen + ation
M * *

Bonding
↳ molecular orbitals

↳> increases electron density in
region between nuclei

& estructive interference

forms antibonding no
-

an

-
decrease in amplitude
-
When wave function is negative

A

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Class notes CHEM 121: Chapter 8

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