Models of the Atom

Chapter 3 begins with a historical study of how early chemists used experimentation and reasoning to assemble models of the atom.  The Lesson 11 PowerPoint provides key vocabulary around the components of the atom (proton, electron, neutron, and nucleus). To help bring these concepts to life, we watched the Crash Course video below:

After the video, students worked with a partner through the Lesson 11 Worksheet, using a handout explaining the five models of the atom.  Notes from class are shown below:


Extend Your Learning!

Click on the infographic below to enlarge the graphic.  There is an excellent article accompanying the infographic as well that is highly encouraged reading.


Wonder what an atom actually looks like?  Using a “quantum-style” microscope, atoms of hydrogen can be seen – check out the article “Smile Hydrogen, You’re on Quantum Camera” from New Scientist magazine (2013).