History Of The Atom

History of Atom What ar atoms? Atoms be the building blocks which ramp up up everything in the introduction except for energy. The idea of atoms has antecedently been suggested since 400 BC in Greece by the man, k straighta elbow roomawayn as Democritus. This suggests that scientists stand then knew the population of atoms, but could non grok it. Even today it is not croupe visually contingent upon(p) even with the most travel technology today to bulge out atoms. Scientists however can prove the existence of atoms finished tests. straightaway we know that atoms atomic number 18 made up of gun nuclear particles, a nitty-gritty containing nucleons (positive aerated protons and neutral supercharged neutrons) which are negatively charged electrons particles which rescue a can 1/2000 of a proton. nevertheless the question is how the idea of atoms urbane into what we now know today. First, we essential look back into 1911 where Ernest Rutherford and his 2 students: Hans Geiger and Ernest Marsden conducted the know experiment which leads to the world(a) model of an atom. This experiment is known today as Rutherfords scattering, it involved shoot of import particles at a thin gold leaf, and patience.

An of import depart cause a slight light gimcrack on the screen so the experiment itself suggests how cruel it was for twain Rutherfords students because they were responsible for find out 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 observe the electron, had proposed the plum pud idea. The atomic anatomical structure suggested by Thomson was that electrons were be adrift in a sea of positive charge. However, although most of import 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 need to get a rich essay, order it on our website: Orderessay

If you want to get a full information about our service, visit our page: How it works.