Tuesday, October 16, 2012

IMPORTANT PEOPLE OF CHEMISTRY


Democritus  -    atomos
J. Thomson – Plum-pudding model,raisin bread model
Antoine Lavoisier – law of conservation of mass , Founder of modern chemistry
Joseph Prous – Law of Definite and multiple proportions
Henri Becquerel – discovered radioactivity
Neils Bohr – Planetary Model
Henry Moseley – atomic number, “New Periodic Law
James Chadwick – discovered neutrons
Ernest Rutherford – alpha-scattering experiment, goil foil
John Dalton – atoms are indivisible
Robert Millikan – 1st accurate date on electric charge of an atom = 1.6 x 10^-19 C
Eugene Goldstein- discovered proton
Dmitri Mendeleev – periodic table (Russian)
Lothar Meyer – periodic table (German )
John Dobereiner – Triads
John Newlands – Law of Octaves
Erwin Schrodinger – Elliptical nature of atoms
Max Planck – quantum theory, atomits emit energy in discrete quantities – quanta
Werner Heisenberg  - Uncertainty Principle
Johannes Van der Waals – weak forces of attraction

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