Thomson Model of the Atom J. J. Thomson - English physicist. 1897 Made a piece of equipment called a cathode ray tube. It is a vacuum tube - all the air.
Unit 3: Structure and Properties Lesson 1: Atomic Structure ScientistContribution to Atomic TheoryExperiment.
2.1 Atoms and Their Structure Democritus – 460 – 370 BC Greek philosophers thought all matter was made up of these 4 ‘elements’: earth, air, fire and.
Chpt. 2: The Atom History of the Atom 1.Greek Philosophers (400BC): - first proposed that matter was composed of minute particles - believed that the.
