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Chemistry 1 Integrated Timeline Project
A été creé
MICHAEL EDWARDS
⟶ mise à jour avec succès 15 sept. 2018 ⟶
List of edits
Les lignes de temps de
MICHAEL EDWARDS
:
4 sept. 2018
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263
Atomic Theory Timeline
5 sept. 2018
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225
Chemistry 1 Project Timeline
29 nov. 2018
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223
New timeline
5 sept. 2018
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222
History of Spain
Commentaires
Les événements
Democritus discovers the atom
John Dalton proposes the first modern atomic theory
J.J. Thomson discovers that atoms are not indivisible and discovers the electron
Ernest Rutherford discovers the nucleus
Niels Bohr suggests that electrons are arranged in orbitals around the nucleus
Werner Heisenberg determines that electrons do not follow simple circular orbits
James Chadwick discovers the neutron
Hennig Brand discovers the element phosphorous
Mendeleev develops the first periodic table
Henry G.J. Moseley orders the elements based on atomic number instead of atomic mass
Edwin Mattison Macmillan and P.H. Abelam discover the first transuranium element, Neptunium
Glenn Theodore Seaborg wins Nobel Prize for the discovery of plutonium and nine other elements
Wilhelm Roentgen discovers x-rays
Henri Becquerel discovers rays produced by uranium
Marie and Pierre Curie discover radioactivity
Hans Geiger invents his radiation detector
Charles Lauritsen invents a high-voltage x-ray machine for radiation therapy
Otto Hahn splits the atom of uranium, providing the possibility of a chain reaction
The Manhattan Project is started, and the world's first nuclear reactor is activated in Oak Ridge
The first atomic bomb is tested in the desert near Alamagordo, New Mexico
USSR explodes its first atomic bomb
President Truman calls for atomic testing of nuclear weapons in the United States
United States explodes the first airborne hydrogen bomb over Bikini Atoll in the Pacific
