HON CHEMISTRY: More fun playing with dots!! Here’s one last look at Lewis structures, multiple bonds, and resonance before we move on to ionic bonding. Don’t forget CONS!!
CHEMISTRY: What a great beginning to this chapter on the periodic table! This type of independent research is a great way to learn the information about the elements on the Periodic Table. Careful! Sometimes you will have to dig deep to interpret the hint from the picture!
Here is the intro the the history of the periodic table and and intro the cLAB: Element Reverse Scavenger Hunt that we did when we very first began the chapter. In addition, I’ve spliced the brief intro notes that I gave you for each block onto this one vodcast. At the very end there is a question/answer session from one of the classes about some of the items in the cLAB.
On Monday I’ll give you a chance to go through the Element Reverse Scavenger Hunt before you turn it in and ask me about any of the elements/clues you might have questions about!
As you are studying for this chapter, make sure you go back and practice figuring out the period, block, group, and type of element from the electron configuration. Also, don’t forget the Chapter 5 Stuff to Know Sheet on Edline!!
To supplement your research, there are some really interesting videos with tons of useful information at this site: http://periodicvideos.com/
Some great videos to watch for the p-Block are carbon, nitrogen, oxygen, fluorine, and chlorine. http://periodicvideos.com/
PHYSICS: So when you were floating in the pool this summer, did you enjoy your fellowship with buoyant forces? 🙂 From Monday – Archimedes’ Principle.
Great topic for investigation! Speaking of which – what did you find? When the kid jumped out of the boat, did the water level rise, fall, or stay the same? Hmmmm…..
HON CHEMISTRY: Who knew we’d be doing geometry in chemistry?!? You did a great job today! Lewis structures, multiple bonds, resonance, and now polyatomic ions and molecular geometry – wow, that’s a lot you’ve conquered in the last few days! One important thing I forgot to tell you! There are only a few elements that can have a multiple bond. They are carbon, oxygen, nitrogen and sulfur – CONS. No other atoms can, so if there is ever a need for a multiple bond but you can’t have one, the compound would be an exception to the octet rule!
Molecular geometry is super easy. Make sure you know how to draw Lewis structures, then determine the type of ABE structure and you’ve got it. Here’s a copy of Molecular Geometry Shapes – VSEPR handout. Be sure and memorize the shape and the ABE structure that goes with it. Easy-peazy!
Here’s some good advice – don’t take shortcuts. Learn the proper steps on the easier molecules, and you’ll be able to do the hard ones. And if it’s still all Greek to you, don’t worry! Keep practicing and you’ll get it, I promise!! Don’t forget to count electrons and don’t forget CONS!
PHYSICS: So glad to have Julius Sumner Miller start our review today! Here’s the brief review we did of some of the conceptual stuff from chapter 7 – torque, circular motion, rotational dynamics, and Newton’s law of universal gravitation.
Here’s the link to Julius Sumner Miller on Centripetal Force. God bless as you study for the test – I’ll be praying for you!
HON CHEMISTRY: Hey guys, welcome to chemical bonds! Great job on using electronegativity to determine bond type. Make sure you add that scale and also the diatomic molecules to your “things I have to memorize for the test” list.
Pretty cool the way orbital notation allows you to see how electrons are shared, huh?!? Let’s play with dots tomorrow!
PHYSICS: …… and to continue, escape velocity and tides. Plus a quick look at a torque problem. Below that is the help session from Wednesday morning – problems 5 and 8 from Circular Motion Worksheet 2.
Wednesday morning Help Session:
CHEMISTRY: Happy Valentine’s Day! God bless as you study for the chapter 4 test on Thursday! Here is the overview that we did today of the chapter. Below that is the helps session from this morning.
Have you checked out the Chapter 4 Stuff to Know Sheet from Edline? Make sure you memorize the things you need to memorize so that you can apply them on the test. And practice, practice, practice, the problems and electron configurations.
What about applications for discussion? Neon signs, photoelectric effect, spectroscopy, etc.? Another great idea for studying is to watch the videos that we watched in class – super helpful as you study for the test!! Check them out on the the earlier lesson web posts. Here are some of them:
Spectrum of the Stars (overivew of the results of the spectroscopy lab you did, shows the connection between our lab on spectroscopy and how we can identify elements), Emission Spectrum of Hydrogen (how we use it to know about the energy levels in an atom), Quantum Mechanics (about the roles of Bohr, Schrodinger, Heisenberg), and also Animated Quantum Mechanics.
God bless you! I’m praying for you!!
Help Session from this morning:
PHYSICS: Wait! There’s a fourth law? Yep – Newton’s law of universal gravitation! So when you jump off of something, the Earth moves, huh?
You’ve learned little g, now you know big G! Good job setting up the problems, also make sure you can apply the concepts.
Ready to escape? We’ll tackle the rest of the applications of this law tomoorrow!
PHYSICS: Well, today was a kind of potpourri of all manner of things – spinning, precession, rolling, Julius Sumner Miller, and a quick look at a couple of the circular motion problems.
Need more help/practice? Help session Thursday morning, 7:20ish A.M.