Difference between revisions of "Ch7 Lec 4"
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==Sec 7.8: Electron Configuration== | ==Sec 7.8: Electron Configuration== | ||
==Sec 7.9: The Building-Up Principle== | ==Sec 7.9: The Building-Up Principle== | ||
Revision as of 12:24, 27 April 2020
(4/27/20, bes)
Greetings...it looks like the weather is starting to turn for the better. I planted some basil and cucumbers outside as a test to see if the night temps in the mid 40s will kill them and the plants are still alive! As you may recall, i showed you a picture of my hydroponic garden in my basement where i grow plants year around....i collect the water (product) from my boiler (heats my house) and use this in the hydroponics system. There are many tomatoes in my basement...i will test them outside shortly.
Okay, so we have 3 more sections to cover in Chapter 7 and we will be ready for exam 3 on FRIDAY. I have posted the Exam 3 instruction link in the main calendar table...the exam will be delivered thru WA. It is my plan to post all notes for the rest of chapter 7 in the next day or so. I will also have another WA homework (i may split this into more than one) for you that will be due on Thurs at 8pm.
Hand in there...we are almost done!
Sec 7.7: Atomic Orbitals
In Fridays notes, i developed the following energy level diagram below on the left. This diagram shows the "addresses" (ie. quantum numbers) for all of the energy levels. Note that when l=0 there is only one energy level, ie. only one ml --> =0; when l=1 there are 3 energy level, ie. ml --> =-1, 0. +1;when l=2 there are 5 energy level, ie. ml --> =-2, -1, 0, +1, +2...and although not shown in the diagram (see later), when l=3 there are 7 energy level, ie. ml --> =-3, -2, -1, 0, +1, +2, +3. Since the l-values seem to have similar properties, we often refer to then as groups or as orbitals...
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