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Found the missing mass of the atom's nucleus
Dalton
Rutherford
Thomson
Chadwick
Democritus
Dalton
Heisenberg
Chadwick
Created the atomic theory
Dalton
Rutherford
Thomson
Chadwick
Democritus
Dalton
Heisenberg
Chadwick
Who did the gold foil experiment?
Dalton
Rutherford
Thomson
Chadwick
Democritus
Dalton
Heisenberg
Chadwick
Believed that atoms of a given element are identical
Dalton
Rutherford
Thomson
Chadwick
Democritus
Dalton
Heisenberg
Chadwick
Believed that the universe was made of tiny uncuttable particles
Dalton
Rutherford
Thomson
Chadwick
Democritus
Dalton
Heisenberg
Chadwick
Use the cathode ray tube in his discovery
Dalton
Rutherford
Thomson
Chadwick
Democritus
Dalton
Heisenberg
Chadwick
Discovered the neutron
Dalton
Rutherford
Thomson
Chadwick
Democritus
Dalton
Heisenberg
Chadwick
Uncertainty principle (a particle's position, energy and time can never be precisely known)
Dalton
Rutherford
Thomson
Chadwick
Democritus
Dalton
Heisenberg
Chadwick
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