Hon Chemistry 4-26-24 Intro to Chemical Bonds & Covalent Bonding

HON CHEMISTRY: Hey guys, welcome to chemical bonds! How did you do on using electronegativity to determine bond type? Make sure you add the scale and also the diatomic molecules to your “things I have to memorize and know how to use for the test” list.

Hon Chemistry 2-15-17 Intro to Chemical Bonds & Covalent Bonding from Tammy Skinner on Vimeo.

flickr photo by Today is a good day

Chemistry 4-24-24 Chapters 3A & 21 Test Overview

CHEMISTRY: God bless you as you practice for the test. Be careful and don’t take the test for granted! SUPER IMPORTANT – Use the Chapter 3A and the 21 Stuff to Know sheet as a guide for what you are memorizing and practicing.

Here is the test overview from today – but better. I’m posting an overview from last year that has more examples than we were able to get to today. Bottom line? Memorize everything and practice everything! And did I mention, PRACTICE!! God bless you! I’ll be praying!!

flickr photo by jim pennucci

Hon Chemistry 4-24-24 Electron Affinity, Ionic Radii & Electronegativity

HON 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 our super short lesson today on electron affinity, ionic radii, and electronegativity. I added more to it after you guys left.

Also the thumbnail photo on the vodcast is a picture of chlorine taking an electron from sodium – or sodium giving an electron to chlorine. I’ll let you decide!

Image source http://theorielerenonline.nl/kosher-salt-picture/

Chemistry 4-22-24 Half Life

CHEMISTRY: Have these banana’s been through too many half lives for you?? Great job thinking through the half-life problems! Be sure and practice, practice, practice!

For homework, be sure and follow along with your notes! These problems aren’t super difficult, but if you don’t practice the right way, you’ll be as lost as a ball in high weeds!!

flickr photo by Per Pettersson

Hon Chemistry 4-18 & 19-24 Elements Occurrences & Uses

HON CHEMISTRY: Wow! Did you every dream there was that much interesting and important stuff to know about the s, p, d, and f block elements?! For Thursday and Friday, here’s our look at the s, d, f a& p block elements.

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!!

To make your research even more interesting(!), there are some really interesting videos with tons of useful information at this site: http://periodicvideos.com/ Go pop some popcorn and have some movie time!

The videos that you must watch from the s-block for the test are potassium, magnesium, and calcium.

The elements from the d block that I especially want you to watch are copper and mercury. And there are other interesting ones you might like to watch just for fun!

The element video from the f-Block that you need to watch is: uranium.

And the element videos you need to watch for the p-Block are carbon, nitrogen, oxygen, fluorine, and chlorine. http://periodicvideos.com/

For Thursday, Part 1

For Friday, Part 2

flickr photo by Wolfram Burner

Chemistry 4-19-24 Radiation Units & Artificial Transmutations

CHEMISTRY: Wow! We made artificial elements! Well, on paper at least 😉

So you can take something that’s not radioactive and make it radioactive? Here’s the lecture on units of radiation and then artifical transmutations.

Also – here’s a link to the video we watched in class on Californium – made right next door at Oak Ridge! Do you think they will make it to element 120?!?

flickr photo by Serpa Júnior