Chemistry 3-20-18 Electron Affinity, Ionic Radii & Electronegativity

CHEMISTRY: So you’re saying, not only are there atoms that want to get rid of electrons, there are atoms that want to take them? Here’s a picture of chlorine taking an electron from sodium – or sodium giving an electron to chlorine. I’ll let you decide!

Image source

Chemistry 3-19-18 Atomic Radii & Ionization Energy

CHEMISTRY: Welcome to chapter 5 – again! Here’s the lesson for today. It’s the lecture on the first two periodic trends – atomic radii and ionization energy. Who knew mama ducks could help you understand chemistry!?!

Chemistry 3-2-17 Atomic Radii & Ionization Energy from Tammy Skinner on Vimeo.

flickr photo by Gerry Balding

Chemistry 3-18-18 Conclusion of cLAB: Element Reverse Scavenger Hunt

CHEMISTRY: Amazing! Before you started the cLAB, did you every dream there was that much interesting and important stuff to know about the s, p, d, and f block elements?!

Test Friday(!) – so I thought I’d go ahead and post TWO VERY IMPORTANT vodcasts to help you study for this part of the test. First is the beginning – a history of the periodic table and the general notes on each block – some of this you may have seen before. Second vodcast is a final run through of all the slides – clarifying some information and filling in gaps you might have.

As you are studying, make sure you go back and practice figuring out the period, block, group, and type of element from the electron configuration. And don’t forget the topics I asked you to research for yourself that you will find on the Chapter 5 Stuff to Know Sheet on Edline!!

To make your research even more interesting(!), there are some really interesting videos with tons of useful information at this site:

Some great videos to watch from the s-block for the test are potassium, magnesium, and calcium.

Some great videos to watch for the p-Block are carbon, nitrogen, oxygen, fluorine, and chlorine.

Some great videos to watch from the d block are: copper and mercury. And there are other interesting ones you might like to watch just for fun!

Some great videos to watch from the f block are: neodymium, thorium, and uranium. Go pop some popcorn and have some movie time!

Chemistry: History of Periodic Table – Intro to Blocks from Tammy Skinner on Vimeo.

flickr photo by Wolfram Burner

Hon Chemistry 2-3-15 Conclusion of cLAB: Element Reverse Scavenger Hunt from Tammy Skinner on Vimeo.

Hon Chemistry 3-7-18 Metallic Bonds

HON CHEMISTRY: Molten iron, wow! Here’s the lecture for Thursday on metallic bonding.

Aren’t you glad there are no structures to draw for metallic bonds?! Make sure you can use the electron sea model to explain the properties of metals. Also be able to compare and contrast all three types of bonds.

Have you made your own Chapter 6 “Stuff to Know Sheet”? Great way to get organized as you get ready for this test on Friday!!

Hon Chemistry 2-26-16 Metallic Bonds from Tammy Skinner on Vimeo.


Hon Chemistry 3-5-18 Dipoles & Intermolecular Forces

HON CHEMISTRY: So why is molecular geometry important? Here’s the beginning of the answer! Great job on drawing dipoles. And thanks for helping me pick up all that water!

We’ll continue our discussion with intermolecular forces tomorrow, and also tackle ionic bonds!

flickr photo by grewlike

Physics 3-5-18 Overview of Chapter 8

PHYSICS: Awesome guest lecturer today! Here are a couple of glances at the end of chapter review, #1 – 14. The first below is from today and is just #7 – 14 and the overview of the test that we did today in class. (Good job, Nathan!!)

The vodcast below that is from last year and is a look at all the question and problems, #1 – 14.

God bless you as you study for your test!

Physics 3-8-17 Overview of Chapter 8 from Tammy Skinner on Vimeo.

flickr photo by Doug Davey

Chemistry 3-2-18 Intro to cLAB: Element Reverse Scavenger Hunt

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 – treat this like it’s kind of a riddle! Sometimes you will have to dig deep to interpret the hint from the picture!

Here’s the vodcast from today (yes – today for real! The new mic worked!!) on the s block notes, notes on hydrogen, and some hints on how to continue the cLAB.

All of the s-block is due Monday in class, and you also have a little bit of book work for Monday.

To supplement your research, there are some really interesting videos with tons of useful information at this site:

Some great videos to watch from the s-block for the test are potassium, magnesium, and calcium.

Hope you have a great weekend!!!

Photo by Aaron Burden on Unsplash

Hon Chemistry 3-2-18 Molecular Geometry Homework & cLAB

HON CHEMISTRY: Happy Friday!!! It has been one looooooong week!!! We missed you guys who were absent today! Below is a look at the molecular geometry homework we went over today (yes, I said today – we have a somewhat working mic!!).

Also we began the cLAB: 3D molecules today in class, and this vodcast will give you a head start on that assignment. Be sure and read the lab sheet BEFORE you start and before you turn in the assignment!!

Have a wonderful weekend!!

Hon Chemistry 3-1-18 Molecular Geometry

HON CHEMISTRY – Who knew we’d be doing geometry in chemistry?!? Here’s the lecture on molecular geometry, with a little practice at the beginning on polyatomic ions. 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. Easy-peazy!

For Friday – print off the cLAB: 3D Molecules, but you don’t have to pre-draw the structures ahead of time. We’ll use the laptops in class to make some molecules!

HON CHEMISTRY 2-14-14 Molecular Geometry from Tammy Skinner on Vimeo.

flickr photo by Ron Layters