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The current theoretical model of the atom involves a dense nucleus surrounded by a probabilistic "cloud" of electrons. Atomic theory is the scientific theory that matter is composed of particles called atoms. The definition of the word "atom" has changed over the years in response to scientific discoveries.
He was the first Oceanian Nobel laureate, and the first to perform the awarded work in Canada. Rutherford's discoveries include the concept of radioactive half-life , the radioactive element radon , and the differentiation and naming of alpha and beta radiation .
The Rutherford model is a name for the first model of an atom with a compact nucleus. The concept arose from Ernest Rutherford discovery of the nucleus. Rutherford directed the Geiger–Marsden experiment in 1909, which showed much more alpha particle recoil than J. J. Thomson 's plum pudding model of the atom could explain.
Regardless of who was first to split the atom, the work of Rutherford, Walton, Cockcroft, Oppenheimer, Fermi, Geiger, Marsden and a host of other scientific pioneers paved the way for the nuclear ...
The prevailing model of atomic structure before Rutherford's experiments was devised by J. J. Thomson. [2]: 123 Thomson had discovered the electron through his work on cathode rays [3] and proposed that they existed within atoms, and an electric current is electrons hopping from one atom to an adjacent one in a series.
Atoms split naturally, but in 1919, Rutherford oversaw the first artificially-induced nuclear reaction in human history at the Victoria University of Manchester's laboratories.
Ernest Rutherford, a Nobel Prize winner known as the father of nuclear physics, is regarded by many as the first to knowingly split the atom by artificially inducing a nuclear reaction in 1917 while he worked at a university in Manchester in the United Kingdom.
In atomic physics, the Bohr model or Rutherford–Bohr model was the first successful model of the atom. Developed from 1911 to 1918 by Niels Bohr and building on Ernest Rutherford 's nuclear model , it supplanted the plum pudding model of J. J. Thomson only to be replaced by the quantum atomic model in the 1920s.