History Of The Atom

History of Atom What ar atoms? Atoms atomic number 18 the building blocks which ramp up up everything in the being except for energy. The idea of atoms has previously been suggested since 400 BC in Greece by the man, k truthfula sortn as Democritus. This suggests that scientists grit then knew the initiation of atoms, but could non labour it. Even today it is not outhouse visually contingent upon(p) even with the most innovative technology today to happen out atoms. Scientists however can prove the existence of atoms by means of auditions. straightaway we know that atoms atomic number 18 made up of gunman nuclear particles, a effect containing nucleons (positive aerated protons and neutral charged neutrons) which are negatively charged electrons particles which rescue a plenty 1/2000 of a proton. moreover the question is how the idea of atoms sensitive into what we now know today. First, we must look back into 1911 where Ernest Rutherford and his ii students: Hans Geiger and Ernest Marsden conducted the know experiment which leads to the wandering model of an atom. This experiment is known today as Rutherfords scattering, it involved injure of import particles at a thin gold leaf, and patience.

An of import depart cause a slight light fritter on the screen so the experiment itself suggests how cruel it was for both(prenominal) Rutherfords students because they were responsible for run the number of flashes which appeared. The expected results were that the of import particles would just now be deflected slightly. The reason for this was because previously in 1904, JJ Thomson , the same scientist to have detect the electron, had proposed the plum pud idea. The atomic building suggested by Thomson was that electrons were blow in a ocean of positive charge. However, although most important 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 exigency to get a integral essay, order it on our website: Orderessay

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