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Research the Scientist and summarize their contributions to the Atomic Theory<br />
Antoine Henri Becquerel<br />
Niels Bohr<br />
Louis de Barogilie<br />
Glenn Seaborg<br />
Glenn Seaborg is mostly know for his discovery of element plutonium and all transuranium elements through element 102. I<br />
how other heavy elements fit into the periodic table and how to struvture it.<br />
Hantaro Nagaoka<br />
Hantaro Naogoka helped transform the model of the atom. His designed showed the electrons orbiting around the postively<br />
of around it.<br />
Democritus<br />
He created the first model of the atomic theory. His model was just a solid sphere and was the base of all models.<br />
Marie and Pierre Curie<br />
They helped discover radium and polnium. In addition , they helped discover the radiation of all radioactive compounds.<br />
Eugene Goldstein<br />
He discovered that their is another ray traveling in opposite directions of electrons and cathode rays. Sometimes hee is cred<br />
protons.<br />
Dmitri Mendeleev<br />
He predicted the properties and existence of non known elements. Creaed the periodic table of elements.<br />
J.J. Thomson<br />
Discovered cathode rays were negatively charged. In addition he discovered the electrobn while experimenting with crooks.<br />
James Chadwick<br />
James Chadwick helped discover that the nucleus is postively charged with protons. He also disovered protons and the fact<br />
outside of the nucleus.<br />
Erwin Shrodinger<br />
Discovered the four orbitals S,F,P, D. Also defined that electrons are constantly moving in orbits.<br />
John Dalton<br />
Discovered that all matter is made up of matter and is undestructable. He also discovered all atoms in an element are identica<br />
Lothar Meyer<br />
Lothar Meyer organized elements by atomic weight. He eventyualyy created an expanded table of elements based in order<br />
Robert Millikan<br />
He discovered the unit charge of an electron. It helped caculate the mass of electrons and postively charged matter.<br />
J.W. Dobereiner<br />
He help-ed group elements in a triad. Elements grouped in triads were organized by simmiliar chemical properties. He creat<br />
Ernest Rutherford<br />
Was the first to create a nuclear model of that atom after experimenting with a sheet of gold and a laser. In addition he disco<br />
charged atoms.<br />
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