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600 B.C.
Thought all life came from water, and thought water was an original atom. -
460- 370 B.C.
Thinking there was an Atom and it looked like just a ball. -
384- 322 B.C.
Did not belive in the Atomic theroy. -
He had no experiment.
He thought atoms were just particles and the picture of the atom was just a ball. -
Around 1803
There was no experiment
His main Contrubrition was that he spent 46 years studying and came up with the atomic theroy.
And the Picture was just a ball. -
The experment that Becquerel had was Urimue. His main Contrubrition was discovered radioactivity in 1896.
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The experment that J.J. Thomson did was the Cathode Rays Tube.
He discovered the electrons. -
1904-1911
The name of the experement was The Gold Foil.
His main contrubrition was the atoms contain a nucleus, made of protons, surrounded by electrons. -
The year was 1908- 1917.
The Experiment name is the Oil Drop.
His main contrudritions are he determinging the charge and mass of an electron, and he contrubrited to the atom between 1908 and 1917. -
The experment name id Bohr.
Main Contrubrition was that electrons are on fixed paths, and the experiment Bohr was not completed. -
The name of the experment that Aston had was the Bohr Atom. His main contrubrition was that he discovered the isotope using a mass spectrometer.
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The Experment name is The Quantum Modle.
The Main Contrubrition is the Quantum Modle. -
The Experment name is the Bohr Modle.
His main contrubritionsare that he discovered evidence towards the modle, and existance ofNeutrons.