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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