CHEMISTRY: Can you believe atoms are that small – and the nucleus even waaaaaay smaller! Here’s another 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! 🙂 )
Here’s the lecture from Monday on atomic number and isotopes. It’s the last lecture for this chapter – and for this year!!
What did you think about Lise Meitner’s story? Amazing, huh? How are you doing on writing nuclear symbols? Also make sure you can use them to determine the number of protons, neutrons, electrons, etc. Did we get to the formula for average atomic mass in your class? It’s here at the very end of the vodcast! Happy calculating on the problems for tonight!
Oh, any questions about the Carbon Isotope Mini-Project?
Image source IBM Almaden Research Center
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this is cool
This comes pretty easy to me.
I thought today’s lesson was very interesting!!
It ceases to amaze how much Chemistry can blow my mind.
I already understood the concept of average atomic mass but now I finally understand isotopes