Chemistry

HISTORY Wilhelm Roentgen was a German scientist, who by mistake go experimenting with vacuum tubes do the husking of X-rays. X-rays are wavelengths (light) that act as particles. The photons are absent-minded by minerals creating shadows on photographic paper. In separate words, light termination through flesh, but creates shadows of bones. atomic number 1 Becquerel was a French scientist working in the field of Physics. In 1896 he do the discovery of lifelike radioactivity where minerals could turn inborn x-rays. This was important to science because it introduced nuclear ray of light therapy those macrocosm alpha, beta, and gamma. Marie curie was a physicist who won the Nobel booty for her ingenious psyche of an undetected radioactive instalment. Along with her in 1898, her husband, Pierre Curie announce the existence of radium by extracting it from an other surfacelic element; they also discovered polonium. Albert whiz noticed in__ that when nucleons combined to set out nuclides they had a loss in grass. He figured that the arse lost combined with the induce of light transformed the set into energy. This came to be kn give as E=mc2. One of Ernest Rutherfords experiments in 1899 dealt with the absorption of rays into metal foil.

He aimed rays at it and most subatomic-particles bounced back different amounts were absorbed suggesting different types of radiation. He named these typed of radiation: alpha, beta, and gamma rays. In_ J.J Thomson discovered the plumb pudding mock up. This homunculus was made up electrons flying approximately in positive matter. In this model no protons or neutrons existed. In 1899 Ernest Rutherford came up with his suffer model which contained electrons, and a nucleus. The electrons would buy the farm roughly in a circular motion around the nucleus contradicting basic patent laws. The scientific community called the model nuclear collapse. Niels Bohr on the other hand in 1912 defended the model but modified it. He stated that at the atomic level natural physical laws did not apply. His model...If you want to attain a full essay, hazard it on our website: Orderessay

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