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Scientist Timeline
Enrico Fermi
Date: 1901
Created worlds first nuclear reactor, The Chicago Pile-1. Also known as "architect of the nuclear age" and "architect of nuclear bomb"
ALbert Eistein
Paul Dirac
Date: 1879
Became famous for the theory of relativity, that laid the basis for the release of atomic theory.
Wilhelm Roentgen
Date: 1902
Introduced the idea of polarization and developed the field of of quantum electrodynamics.
Democritus
Date: 1845
He found very penetrating rays coming from CRT that were not deflected by a megnetic field and he named them X-RAYS.
Date: Greek Era
Said everything is made up of atoms.
Dmitri Mendeleev
MAX pLANCK
Robert Millikan
Date: 1858
Used the idea of quanta (discrete units of energy) to help explain hot glowing matter
e. Goldstein
Date: 1850
Used a CRT (Cathode Ray Tube) to study canal rays that had electrical and magnetic properties.
Pierre & Marie Curie
Date: 1834
He formulated the periodic table.
James Chadwick
Henri Becquerel
DAte: 1859
Worked together in the study of radioactivity which eventually led to theri discovery of the elements of radium and polonium.
Date: 1891
Bombarded beryllium atoms with alpha particles. He interpreted this radiation as being composed of particles with a neutral electrical charge and the approximate mass of a proton.
Date: 1852
Discovered radioactivity
Date: 1968
Did an oil drop experiment that helped quantify the charge of an electron
J.J Thomson
Date: 1856
Discovered the electron by experimenting with a Cathode Ray. Demonstrated cathode rays were negatively charged.
James Clerk MAxwell
Date: 1831
Proposed electric and magnetic fields
ERnest Rutherford
Neils Bohr
Date: 1871
Designed an experiment to use the alpha particles of emitted by a radioactive element as probes to the unseen world of atomic structure.
Date: 1885
Proposed theory for hydrogen atom based on quantum theory that energy is transferred in only certain quantities.
Schrodinger
Date: 1930
Viewed electrons as continuous clouds and introduced "wave mechanics" as a mathematical model of the atom
Henry Moseley
Glenn Seaborg
Date: 1887
His studies resulted in a more accurate positioning of elements on the periodic table.
Date: 1912
Shared nobel prize for his discovery of the transuraniam elements.
By: Allie Totten