-
400 BCE
Democritus Experiment
Developed the concept of the Atom -
John Dalton Experiment
Recognized that the total pressure of a mixture of gases is the sum of the contributions of the individual components of the mixture. -
Jj Thompson Experiment
Set out to prove that the cathode rays produced from the cathode were actually a stream of negatively charged particles called electrons. -
Rutherford Gold Foil Experiment
Scientist discovered that every atom contains a nucleus where all of its positive charge and most of its mass are concentrated. Also received a Noble Prize -
Bohr Experiment
Shell model, explains how electrons can have stable orbits around the nucleus.
