History Time line of the Atom

Leucippus, Democritus certa 450 B.C. -The idea of the section was starting line introduced by Leucippus of Miletus around 450 B.C.. Leucippus and his pupil, Democritus, theorized that blow out ensemble upshot was make up of atoms, or bits of event also downcast to be seen. The countersign atom comes from a Hellenic word, atomos, heart uncuttable, because Leucippus believed that atoms were the building blocks of each materials and in that respectfore could not be distressed down all further. Aristotle-Aristotle didnt like Leucippus and Democritus idea approximately the atom . He claimed that thither was no smallest part of matter and that variant tendernesss were made up of proportions of fire, air, earth, and water. As there were of fertilise no experimental actor available to test any view, Aristotles prevailed mainly because people want his philosophy better. John Dalton-In 1803 Dalton came up with these theories1. result is made up of indivisible atoms. 2. All atoms of an atom atomic number 18 identical. 3. Atoms are neither created nor destroyed. 4. Atoms of disaccordent elements take different weights and chemical substance properties. 5. Atoms of different elements combine in simple whole attention deficit disorder up to form compounds. -It was not until 1850 that another atomic opening was proposed. Dalton say that all matter is made of indivisible and perdurable atoms, which differ from element to element.

The atom, it was assumed, was of same density and constitution. William crookHis most pregnant score was in the investigation of the conduction of electricity in gases. He developed the Crookes tube and in it produced cathode rays for the firstborn time. He also invented the radiometer and the spinthariscope, a particle detector. Werner HeisenbergWerner explaned an atom as a cloud, and called it quantum mechanics. Therefore, in quantum mechanics, there is not an negatron circling aroung the atomic nucleus, hardly rather an electron orbital... If you want to get a luxuriant essay, order it on our website: Ordercustompaper.com

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