Atom Timeline

1704 Isaac Newton Proposed a mechanical humans with small unattackable piling in motion. 1803 John Dalton Proposed an nuclear theory with spherical firm atoms based upon measurable properties of crowd 1832 Michael Faraday canvass the do of electrical automobileity on solutions, coined term electrolysis as a dissever of molecules with electrical energy, developed laws of electrolysis. Faraday himself was non a proponent of atomism. 1859J. PluckerBuilt one of the original gas discharge tubes (cathode re tube).1869Dmitri MendeleevArranged elements into 7 groups with corresponding properties.  He discovered that the properties of elements  were occasional(a) functions of the their atomic weights.  This became known as the weekly Law.1873James Clerk MaxwellProposed electric and magnetised palm filled the void.1879Sir William CrookesDiscovered cathode rays had the side by side(p) properties: travel in straight off lines from the cathode; manage glass to glow; impart a prejudicious charge to objects they strike; be deflected by electric fields and magnets to suggest a nix charge; cause pinwheels in their path to spin indicating they ware mass.1886E. GoldsteinUsed a cathode-ray tube to get transmission channel rays which had electrical and magnetic properties opposite of an electron.1894G.J.

StoneyProposed that electricity was do of discrete negative particles he called electrons . (Link to info on electrons)1895Wilhelm RoentgenUsing a cathode-ray tube he spy that nearby chemicals glowed. promote experiments show rattling penetrating rays overture from the CRT that were not deflected by a magnetic field. He named them X-rays.1896Henri BecquerelWhile studying the effect of x-rays on photographic film, he discovered some chemicals ad lib disassemble and give off very pentrating rays.1897J.J. ThomsonUsed a CRT to by experimentation determine the charge to mass ratio (e/m) of an electron =1.759 x 10 8 coulombs/gram.1897J.J. ThomsonStudied canal rays and found they were associated with the proton H +...If you neediness to get a generous essay, order it on our website: Orderessay

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