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ATOMIC THEORY TL
Created by
Regine May Sabarillo Pajuyo
⟶ Updated 6 Jan 2018 ⟶
List of edits
Comments
Events
DEMOCRITUS "atomos" 430 B.C.
LaVOISIER "law of conservation of Mass" 1788
PROUST "law of definite proportions" 1794
GAY-LUSSAC "law of combining volumes" 1804
JOHN DALTON "law of multiple proportions" 181-1811
AMEDEO AVOGARDO "avorgardo's hypothesis" 1811
WILHELM ROENTGEN "discovered x-rays" 1895
HENRI BEQUEREL 1896
J.J. THOMPSON "used cathode rays to discover the electron" "plum pudding model" 1897
MAX PLANCK "quantum theory" 1900
ALBERT EINSTEIN "photoelectric effect" 1905
ERNEST RUTHERFORD "nuclear model" 1911
ROBERT MILLIKAN "performed oil drop experiment" 1911
HENRY MOSLEY "used x-rays experiments to discover the atomic number of an element" 1913
NIELS BOHR "why aren't electrons pulled into the nucleus? 1913
JAMES CHADWICK "discovered the neutron" 1932