Difference between revisions of "PChem322 s22 w2"
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:3) Start looking over Chapter 2. This is a very important introductory chapter that requires in-person explanation and hence we will begin in earnest this chapter on Monday, Jan 24th. There are a few introductory topics in section 2.1 that can be discussed now. | :3) Start looking over Chapter 2. This is a very important introductory chapter that requires in-person explanation and hence we will begin in earnest this chapter on Monday, Jan 24th. There are a few introductory topics in section 2.1 that can be discussed now. | ||
| − | ::- continuous vs. discrete energy levels. The concept of discrete energy levels has been drilled into your chemistry education since Gen Chem. When we think about the periodic table, we think &rarr | + | ::- '''continuous vs. discrete energy levels.''' The concept of discrete energy levels has been drilled into your chemistry education since Gen Chem. When we think about the periodic table, we think → 1s, 2s, 2p, etc.; these are the energy levels for the electron in the hydrogen atom...shown below: |
| − | :[[File:energy_level_00.png| | + | :::[[File:energy_level_00.png|600px]] |
| + | |||
| + | ::These are discrete energy levels not continuous. As noted, in lab on thursday, we will discuss this further but for now, let's focus in on only 2 discrete energy levels, level 1(L1 or subscript "1") and level 2 (L2 or subscript "2"), where L2 is higher in energy that L1. | ||
| + | ::: _______ L2 | ||
| + | |||
| + | |||
| + | :::________L1 | ||
===Thurs, Jan 20, 2022=== | ===Thurs, Jan 20, 2022=== | ||
Revision as of 16:19, 19 January 2022
Mon, Jan 17, 2022
Announcements
- 1) Good Monday morning and happy Martin Luther King Jr. Day! If you have not recently seen/heard the original August 28, 1963 (I was 4 month old) MLK Jr. speech, i suggest you watch it now. Here is the full 17 min audio of the speech and here is a shorter 6 min "highlight" video. This is without a doubt a beautiful and timely speech. A particular part resonates with me as a teacher...he notes, "I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin but by the content of their character."
- 2) Heads-up...in lab this week we will meet in-person in CSB 377, the computer lab. I will expect that you have your laptops up and ready to run Excel, Igor, Mathematica...or you can us the computers in 377.
Class Assignment
- 1) Today i would like for you to foucs your attention on Sec 1.5 and 1.6. These sections cover the "particle-wave duality" of matter and light. Although the following video is a bit old, it still does a great job of 1st describing how particles behave, then how waves behave and then explains the double slit experiment...
- DOUBLE SLIT EXPERIMENT (5:13 min)
- 2) Complete the following worksheet that mainly focuses on Sec 1.5.
END
Weds, Jan 19, 2022
Announcements
- 1) Welcome to 5G (5th Generation) cell service. This technology, which in part uses the C-Band (~4GHz) microwave technologies, may interfere with the altimeter on commercial airlines, hence thee has been a lot of concern over the launch. The cell phone companies have agreed to not use this frequency around airports for the time being...stay tuned.
- 2) We will meet in CSB 373 at 2 pm this week for lab. I am estimating that we will finish around 5-5:30pm.
Class Assignment
- 1) In lab on Thursday i will make a few additional comments and do a demonstration related to Sec 1.7: Atomic Spectra. Please read this section and be prepared to discuss.
- 2) I would like to point out the KEY EQUATIONS that show up on p. 33. These types of summaries are important to know about, so please note there existence.
- 3) Start looking over Chapter 2. This is a very important introductory chapter that requires in-person explanation and hence we will begin in earnest this chapter on Monday, Jan 24th. There are a few introductory topics in section 2.1 that can be discussed now.
- - continuous vs. discrete energy levels. The concept of discrete energy levels has been drilled into your chemistry education since Gen Chem. When we think about the periodic table, we think → 1s, 2s, 2p, etc.; these are the energy levels for the electron in the hydrogen atom...shown below:
- These are discrete energy levels not continuous. As noted, in lab on thursday, we will discuss this further but for now, let's focus in on only 2 discrete energy levels, level 1(L1 or subscript "1") and level 2 (L2 or subscript "2"), where L2 is higher in energy that L1.
- _______ L2
- These are discrete energy levels not continuous. As noted, in lab on thursday, we will discuss this further but for now, let's focus in on only 2 discrete energy levels, level 1(L1 or subscript "1") and level 2 (L2 or subscript "2"), where L2 is higher in energy that L1.
- ________L1
Thurs, Jan 20, 2022
Announcements
Class Assignment
Fri, Jan 21, 2022
Announcements
- 1)
Class Assignment
- 1)