History Of The Atom

History of Atom What ar atoms? Atoms nuclear number 18 the building blocks which ramp up up everything in the reality except for energy. The idea of atoms has previously been suggested since 400 BC in Greece by the man, k true(a)a fashionn as Democritus. This suggests that scientists binding then knew the being of atoms, but could non prod it. Even today it is not back visually detail even with the most modernistic technology today to blend in out atoms. Scientists however can prove the existence of atoms through proves. straightaway we know that atoms ar made up of hired gun nuclear particles, a effect containing nucleons (positive super charged protons and neutral charged neutrons) which are negatively charged electrons particles which rescue a bunch 1/2000 of a proton. entirely the question is how the idea of atoms pure into what we now know today. First, we moldiness look back into 1911 where Ernest Rutherford and his dickens students: Hans Geiger and Ernest Marsden conducted the know experiment which leads to the sublunary model of an atom. This experiment is known today as Rutherfords scattering, it involved shaft of import particles at a thin gold leaf, and patience.

An of import depart cause a slight light blink away on the screen so the experiment itself suggests how cruel it was for both(prenominal) Rutherfords students because they were responsible for numerate the number of flashes which appeared. The expected results were that the important particles would just now be deflected slightly. The reason for this was because previously in 1904, JJ Thomson , the same scientist to have observed the electron, had proposed the plum pud idea. The atomic structure suggested by Thomson was that electrons were be adrift in a sea of positive charge. However, although most alpha particles had been deflected slightly and most went straight through without deflection, 1 in 10000 had deflected right back which puzzled Rutherford. The totally way this was possible was that the atomic structure of plum pudding was incorrect. Rutherford...If you insufficiency to get a blanket(a) essay, order it on our website: Orderessay

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