Today we continued with discussion about the history of the atom. We learned that when J.J. Thomson discovered electrons trough his experiment with cathode rays, he came up with the a new model of the atom. Thomson called this new model the plum pudding model.
We discussed the Thomson's model is like a chocolate cookie ball or what he coined as the plum pudding model. Here a ball of positively charged particles has embedded in it negatively charged particles. (See image 1 below.)
We discussed the Thomson's model is like a chocolate cookie ball or what he coined as the plum pudding model. Here a ball of positively charged particles has embedded in it negatively charged particles. (See image 1 below.)
We also learned about Ernest Rutherford and his discover of the nucleus of the atom. He and his students tested Thomson's model using alpha particle being projected at a gold foil. (See image 2 below
We read pp. 317-318.
Image 1
Image 2.
Here are the notes:
Here are the recipes for the different models we talked about