Contributors
Created byJake MacMaster
Attachments
Events
Democritus
develops the concept of the atomAristotle discovers 3 parts to a atomAlchemists call the smallest piece of a pure substance an elementRobert Boyle makes a discover about gasJohn Dalton makes a discovery about matter.Dmitri Mendeleev creates the periodic tableJ.J. Thomson makes a discovery about electronsHans Geiger discovers a counter for alpha particlesErnest Rutherford overturns J.J. Thomson's theroyRobert Millikan discovers the charge of a electronNeils Bohr has a theory about electronsJames Chadwick makes a discovery about nuetrons
Comments