Early History of the Atom - Ms. Colvin's Classroom

Early History of the Atom - Ms. Colvin's Classroom

Research Early History of the Atom Matter Anything with mass and volume Composed of atoms

Dalton (1766 -1844) Developed the first theory of the structure of the atom Billiard Ball Model

of the atom Daltons Billiard Ball Model Daltons Theory Thomson (1856

1940) Experimented with cathode ray tubes Discovered negatively charged electrons Plum Pudding model of the atom

Thomsons Plum Pudding Model Thomsons Exp. Cathode Ray Tube Negative Plate Cathode

Positive Plate Deflected Cathode Ray Tube Rutherford (1871 1937)

Experimented with alpha particles and gold foil Discovered the positively charged nucleus (protons) Nuclear model of the atom

Rutherfords Nuclear Model Rutherfords Exp. Rutherfords Gold Foil Experiment Close-up Of Gold Foil Atoms Alpha Particles Hit Gold Atom Nucleus And

Are Deflected Chadwick Experimented with radioactivity Discovered the neutron (1891 1974)

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