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Research the Scientist and summarize their contributions to the Atomic Theory<br />
Antoine Henri Becquerel<br />
Antoine found strange radioactivity in his experiments with different substances which helped him invent the x-ray. He the<br />
found out about the deflection of beta particles.<br />
Niels Bohr<br />
Niels contributed to to the understanding of the structures to atoms.He then found out about the development of quantum<br />
mechanics.<br />
Louis de Barogilie<br />
Louis studied quantum theory. He then predicted the wave natures of electrons.<br />
Glenn Seaborg<br />
Glenn isolated radioactive elements.He then formulated the actinide concept.<br />
Hantaro Nagaoka<br />
Hanatro contributed to the atom model. He also suggested that the electrons were outside of the atom.<br />
Democritus<br />
Democritus created the atomic theory. Which then helped future scientists.<br />
Marie and Pierre Curie<br />
Marie and Pierre studied on radioactivity. In which they discovered 2 elements named radium and polonium<br />
Eugene Goldstein<br />
Eugene concluded that cathode rays negativity charged travel towards the positively charged anode. He also thought abou<br />
electrons doing the same thing.<br />
Dmitri Mendeleev<br />
Dmitri contributed to the periodic table by putting elements into rows and colums. He did it by atomic mass and chemical/ph<br />
propertys.<br />
J.J. Thomson<br />
J.J. discovered electrons when doing a experiment with cathode ray. He also discovered that cathode is negativity<br />
charged.<br />
James Chadwick<br />
James discovered neutrons. He did it by combining beryllium atoms with alpha particles.<br />
Erwin Shrodinger<br />
Erwin contributed to the wave theory. Which involved matter and quantum mechanics.<br />
John Dalton<br />
John contributed to the atomic theory. He did it by concluding when atoms combine in a ratio it must be presumed to be a<br />
binary.<br />
Lothar Meyer<br />
Lothar was one of the first to create the periodic table. The periodic table he had contained 28 elements.<br />
Robert Millikan<br />
Robert did a oil drop experiment which helped us find the quantity of an electron. After he did this it then helped us<br />
understand the structure of the atom.<br />
J.W. Dobereiner<br />
J.W. observed the similarities of elements. It then help contribute with the periodic table.<br />
Ernest Rutherford<br />
Ernest discovered alpha and beta rays. He then set created the law of radioactive decay.
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