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6 Cards in this Set

  • Front
  • Back
Relationship between matter and electrical charge

Sir William Crookes
Cathode ray tube- cathode + anode; television; stream of negatively charged particals electron
JJ Thomason 1890s
Determined charge to mass ratio of electron, much less that H atom- plum pudding
Robter Milliken 1909
determined charge on electrons within 1% present value
The nuclear atom

Rutherford 1911
gold foil experiment, found deflections close to dense, central nucleus
Protons and Nuetrons

Rutherford 1920
refined ideal of nucleus- proton
James Chadwick 1932
identified neutron