Monday, February 18, 2019
Ernest Rutherford :: Nuclear Physics Science Chemistry Essays
Ernest Rutherford Ernest Rutherford is considered the father of nuclear physics. Indeed, it could be said that Rutherford invented the very linguistic communication to describe the theoretical concepts of the atom and the phenomenon of radioactivity. Particles named and characterized by him include the alpha particle, of import particle and proton.Even the neutron, disc everyplaceed by James Chadwick, owes its name to Rutherford. The exponential function equation used to calculate the decay of radioactive substances was first diligent for that purpose by Rutherford and he was the first to elucidate the related concepts of the half-life and decay constant. With Frederick Soddy at McGill University, Rutherford showed that elements such as uranium and atomic number 90 became different elements (i.e., transmuted) through the process of radioactive decay. At the time, such an unimagined idea was not to be mentioned in polite company it belonged to the demesne of alchemy, not scienc e.For this work, Rutherford won the 1908 Nobel Prize in chemistry. In 1909, now at the University of Manchester, Rutherford was bombarding a thin gold foil with alpha particles when he spy that although almost all of them went through the gold, one in eight chiliad would bounce (i.e., scatter) back. The amazed Rutherford commented that it was as if you fired a 15-inch naval vitrine at a piece of tissue paper and the shell came indemnify back and hit you.From this simple observation, Rutherford concluded that the atoms mass must be concentrated in a small positively-charged nucleus while the electrons know the farthest reaches of the atom. Although this planetary model of the atom has been greatly refined over the years, it remains as valid today as when it was originally formulate by Rutherford. In 1919, Rutherford returned to Cambridge to become director of the Cavendish laboratory where he had antecedently done his graduate work under J.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment