1. By: Zack Hopkins

2.  Was born on December 18, 1856 in Cheetham Hill, Menchester.  Study at Trinity College, located in a city called Cambridge in the United Kingdom.  He remand in Trinity College for the rest of his life becoming a Lecturer and a Master there. Later he began to teach at Trinity.  He spent the rest of his life as a professor at Trinity College.

3.  Discovered the existence of electrons in atoms.  Discovered the electrical charge of the electrons and how the mass was the smallest particle  Believed the location of the electrons was inside the nucleus  Later the correct location was found without Thomson  This was a new discovery of the atom and open the path way for more discoveries of atoms that had differences.

4.  The experiment done by Thomson was done with a Cathode Ray tube which created an invisible electrical ray that would attracted to the opposite side of the tube.  The ray would make a light on the other side of the tube caused by the positively charged plate  When Thomson decided to put a plate with a positive and negative charge on two opposite sides in the middle of the tube the ray would bend toward the positive side of the plate  The only explanation for this was that there most be negatively charged particles in the ray.