1. By: Manny Gill, and Harmandeep Gill
J.J. Thomson
By: Manny Gill, and Harmandeep Gill

2. Personal Story December,18,1856- August,30,1940.
Born in Cheetham Hill Manchester.
1906 won a Nobel Prize in Physics.
Age 14 went to Owen college 1870
George Paget Thomson won Nobel Prize

3. Area of Study Built a cathode-ray tube
Electrometer to measure electrical charge.
Used magnet to see the charge from the rays.
Negative charge was smaller particles than atom.
Positive and negative charges have to balance.

4. Idea of the Atom
Plum Pudding

5. Major Scientific Contribution
Discovered the electron (corpuscle)
Discovered isotopes.
Hydrogen has one electron per atom

6. Bibliography http://library.thinkquest.org/28582/history/plum.htm