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Alfonso-Pelayo,S Atomic Theory

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Alfonso-Pelayo,S Atomic Theory
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  • Atoms are solid and same throught.Universe consisted of empty space and atoms (atomos).Thought atoms were indivisible.
  • Democritus
  • John Dalton
  • Matter is made of atoms.Atoms Cannot be destroyed or made.
  • J.J Thomson
  • Dicovered that atoms have charges. The plum pudding model showed floating electorns.Modified Dalton's idea atom ( no longer solid).
  • Ernest Rutherford
  • Tested Plum Pudding model.Shot tiny positivly charged particles out of particle gun into gold foil.Determined from expirements and clues that electrons must orbit some distance from center.
  • Used expiremental data from emission or discharge and absorbsion spectra elements to shape the his theory.Believed electrons occupy specific or exact ,energy levels.Energy levels are specific distances from nucleus.
  • Neils Bohr
  • Modeled wave equation that allowed scientists to identify properties of electrons as both a wave and particle.Believed that electrons dont stay in a certain orbit,but can have a predicted zone around nucleus(electron cloud).
  • Erwin Schrodinger
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