The Atomic Theory

The nuclear Theory In this report I give give a history on the discipline of the atomic theory. I will cover some of the most decisive dates in the reading of atomic theory. An atom was first judgement of by the Ancient Greeks who believed that matter was made of smaller instalments called elements. The put forward they gave to these segments was the atom. In 1776 the man know as The Father of atomic Theory, John Dalton was born in England. He is know as the father of atomic theory because he is the whizz who go out many of the different masses for different elements, he withal discover the different proportions which molecules are formed in. Dalton similarly discovered the inert gases, and their failure to react with other substances. In 1969 a Russian chemist, named Mendeleyev who a renowned teacher positive, the biyearly law of the properties of the chemical elements (which states that elements show a regular ruse when they are arranged according to thei r atomic masses). Mendeleyev wrote a two-volume appropriate called Principles of chemistry (1868-1870), which later became a classic. These books included an improved edition of the periodic table. Sir Joseph Thomson, another important person in the development of the atomic theory, was born in 1906. Thomson won the Nobel Prize in physics (1906) for his work in the conduction of electricty through gases. He discovered the electron by using cathode rays. An electron is the smallest particle of an atom, the charge on an electron is negative. Ernest Rutherford, who was born in 1871 key out the three main comp superstarnts of radioactivity: alpha, beta, and gamma particles. Radioactivity was discovered by a French scientist named Becquerel. Rutherford was also the first one to disdcover the true structure of an atom. An atom has a central pestilent nucleus with an electron cloud surrounding it.

Ernest was also the specify with the first man made nuclear reaction. This accomplishment came in 1919. A colleague of Rutherfords at Cambridge University named James Chadwick discovered the leash fundamental particle that makes up the atom: the neutron. This important find led to the making of the first atom go bad and to the baring of nuclear fission. The neutron has a relative mass of one and has no negative or positive charge (neutral). Chadwick was strongly strike with British atomic bomb effort, during World War II. During the kick the bucket to years of the war, Chadwick helped with the U.S. nuclear weapons research. The first atomic bomb was developed with the help of Chadwick, and because of this he earned the Nobel Prize for natura l philosophy in 1935. If you want to get a full essay, read it on our website: OrderCustomPaper.com

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