1. Sergio Medina, Brian Gonzales

2. Biography  Joseph John Thomson was born in Manchester, on April 18  Married Rose Elisabeth in 1890, and had two children  He was awarded the 1906 Nobel Peace Prize in Physics  He passed away on August 30, 1940

3. Famous Discoveries  Measured how a magnetic field and an electric field deflected a cathode ray tube, and concluded that cathode rays are made of negatively charged particles and that they come from the cathode, the negative end of the cathode ray.  Thomson named these negatively charged particles electrons  Discovered that an electron’s electrical charge is 1.76x10^8 coulombs per gram

4. Sources  http://www.nobelprize.org/nobel_prizes/p hysics/laureates/1906/thomson-bio.html http://www.nobelprize.org/nobel_prizes/p hysics/laureates/1906/thomson-bio.html  Chemistry text book