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Issac Newton
Isaac Newton theorized a mechanical universe with small, solid masses in motion. -
Period: to
scientist
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John Dalton
proposed that elements consisted of atoms that were identical and had the same mass and that compounds were atoms from different elements combined together. -
Michael Faraday
developed the two laws of electrochemistry. -
J. plucker
built one of the first cathode-ray tubes. -
Dmitri Mendeleev
created the periodic table -
James Clerk Maxwell
proposed the theory of electromagnetism and made the connection between light and electromagnetic waves. -
G.J. Stoney
theorized that electricity was comprised of negative particles he called electrons. -
Sir William Crookes’
experiments with cathode-ray tubes led him to confirm the work of earlier scientists by definitively demonstrating that cathode-rays have a negative charge. -
E. Goldstein
Discovered canal rays, which have a positive charge equal to an electron -
Wilhelm Roentgen
discovered x-rays. -
Henri Becquerel
Gold Foil Experimentdiscovered radiation by studying the effects of x-rays on photographic film. -
J.J. Thomas
determined the charge to mass ratio of electrons. -
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Max Planck
came up with the term "isotope" to explain the unintentional breakdown of radioactive elements. -
Fredrick Soddy
came up with the term "isotope" to explain the unintentional breakdown of radioactive elements. -
Hantaro Nagaoka
proposed an atomic model called the Saturnian Model to describe the structure of an atom. -
Richard Abegg
found that inert gases have a “stable electron configuration.” -
Hans Geiger
invented a device that could detect alpha particles. -
H.G.J. Moseley
discovered that the number of protons in an element determines its atomic number. -
Francis William
used a mass spectrograph to identify 212 isotopes. -
Niels Bohr
proposed an atomic structure theory that stated the outer orbit of an atom could hold more electrons than the inner orbit. -
Louis de Broglie
proposed that electrons have a wave/particle duality. -
Cockcroft/Walton
created the first nuclear reaction, producing alpha particles -
Paul Dirac
proposed the existence of anti-particles. -
James Chadwick
discovered neutrons, particles whose mass was close to that of a proton. -
Lisa Meitner, Hahn, Strassman
discovered nuclear fission. -
Glenn seaborg
discovered eight transuranium elements. -
Enrico Fermi
created the first man-made nuclear reactor. -
Devin VG
Devin was born 17years later this special scientist made this timetoast
