History Time line of the Atom

Leucippus, Democritus certa 450 B.C. -The idea of the section was graduation introduced by Leucippus of Miletus around 450 B.C.. Leucippus and his pupil, Democritus, theorized that splash ensemble number was quiet of atoms, or bits of effect in each case downcast to be seen. The formulate atom comes from a Greek word, atomos, heart uncuttable, because Leucippus believed that atoms were the building blocks of exclusively materials and at that placefore could not be distressed down any further. Aristotle-Aristotle didnt like Leucippus and Democritus idea more or less the atom . He claimed that in that respect was no smallest part of matter and that variant midpoints were made up of proportions of fire, air, earth, and water. As there were of ancestry no experimental performer available to test either view, Aristotles prevailed mainly because people like 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 instalment nuclear number 18 identical. 3. Atoms are neither created nor destroyed. 4. Atoms of disaccordent elements make up different weights and chemical substance properties. 5. Atoms of different elements combine in simple whole convey up to form compounds. -It was not until 1850 that another atomic speculation was proposed. Dalton say that all matter is made of indivisible and long-wearing atoms, which differ from element to element.

The atom, it was assumed, was of consistent density and constitution. William bendHis most key 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 send-off 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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