Bohr's model

On October 15th, we learned about a man named Niel's bohr and how he came to create the Bohr Model.

Niels bohr wasn't satisfied with the model Earnest Rutherford created.His model was unstable and that protons and electrons should attract each other. So Bohr created a model based on the energy emitted by different atoms and that each atom has a specific spectra of light. To explain what he was talking about, Bohr stated that electrons occupy shells or orbitals.

Bohr's theory.
Electrons exist in orbitals
When they absorb energy, they move to a higher orbital to a lower one. They also release energy as a photon of light.

Here is a link to a program that shows how electrons move from shell to shell.


http://phet.colorado.edu/en/simulation/hydrogen-atom

Just click on it, click prediction and click on bohr. Why stop there? There are many other cool examples like  
J.J thompsons plum pudding model and John Dalton's billard ball model!

-Julius Francia :)