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Chapter Page I The Old World of Atoms
The New World of Atoms
Things to Remember
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A T O M S M A S H E R S acceleration chamber alpha particles alternating current amounts of U235 atom smashers atomic bomb atomic particles atoms of matter barium basic beam bombardment chamber bullets called cathode chain reaction charge of electricity chemical coils core cosmic particles Crookes cyclotron discovered droplets dust particles elec electric charge electrified particles electron-volt electrostatic element energy Ernest Rutherford evacuated explosive filament helium high voltage hydrogen ionization isotopes J. J. Thomson known laboratory larger magnetic field mass ment miles per second Millikan millions molecules moving mystery nature negatively charged neptunium neutrons nitrogen nuclear physics nucleus operation ordinary oscillator pass path physicists plutonium pole positively charged positron powerful protons radiation radio radium released repelled result simple single electron space speed split strike target thing Thomson tiny tion transmutation trons tube uranium uranium atom vacuum volts weight Wilson cloud chamber