Hon Chemistry 1-15-20 Bohr Model of the Atom

HON CHEMISTRY: I figured anybody who ditched his honeymoon to finalize his work on atomic theory deserved to have his picture on our website. (I’ll finish telling you that story tomorrow!)

Here are some of the video clip that begin to show the connection between our lab on spectroscopy, the hydrogen emission spectrum, and how we can identify elements – including the one from today on why it’s all important. They’ll be very helpful as you study!!

The Electromagnetic Spectrum (not the song!)
Emission Spectrum of Hydrogen
Animated Quantum Video is the one that explains all about why scientists began to believe that electrons could be acting as waves


Image source www.atomicarchive.com/Images/bio/B23.jpg

Chemistry 1-15-20 Isotopes & Average Atomic Mass

CHEMISTRY: Isn’t God awesome to give us minds to understand the world around us – even the parts we can’t see!

Here’s the discussion from Wednesday on isotopes and average atomic mass. How are you doing on writing nuclear symbols? Also make sure you can use them to determine the number of protons, neutrons, electrons, etc., AND be sure you can use the formula to find average atomic mass!

Can you believe atoms are that small – and the nucleus even waaaaaay smaller! The thumbnail is a picture of atoms from the IBM Almaden Research Center. These are iron atoms on top of copper. Being able to move atoms around like this was a giant leap in the field of nanotechnology! (Sorry about that, bad pun! 🙂 )


Image source IBM Almaden Research Center