Quantim Theory
Quantim Mechanics is abranch of mathematical physics that deals with the emission and absorption of energy by matter and with the motion of material particles. Because it holds that energy and matter exist in tiny, discrete amounts, quantum mechanics is particularly applicable to Elamentry Pprticlesand the interactions between them. According to the older theories of classical physics, energy is treated solely as a continuous phenomenon and matter is assumed to occupy a very specific region of space and to move in a continuous manner. According to the quantum theory, energy is emitted and absorbed in a small packet, called a quantum (pl. quanta), which in some situations behaves as particles of matter do; particles exhibit certain wavelike properties when in motion and are no longer viewed as localized in a given region but as spread out to some degree. The quantum theory thus proposes a dual nature for both waves and particles, with one aspect predominating in some situations and the other predominating in other situations. Quantum mechanics is needed to explain many properties of matter, such as the temperature dependence of the specific heat of solids, as well as when very small quantities of matter or energy are involved, as
John Dalton was a english scientist. They were wrong because at those times there was not enough tecknoladgy around to ptove other wise. In 1895, Thomson discovered the electron. His evidence came from the experiment he did using an apparatus that allowed him to see the glow of the stream of negatively charged particals released when a gas is subjected to intense electrical forces. Subsequent studies of the atom divided into investigations of the electronic parts of the atom, which came to be known as atomic physics, and investigations of the nucleus itself, which came to be known as nuclear physics. His experiment: His experiment was that he bumbarded a sheet of gold foil with alpha particles, and discovered that the atom was not a solid mass, but infact is made soly of empty space. Subsequent studies of the atom divided into investigations of the electronic parts of the atom, which came to be known as atomic physics, and investigations of the nucleus itself, which came to be known as nuclear physics. in the interaction of elementary particles and fields, but the theory of Relativity assumes importance in the special situation where very large speeds are involved. In this model the electrons travelled in relatively distant orbits around the nucleus. Other scientist also made models that had an impact on the scientific community. Shrodinger's modelwas basically a cloud of sub atomic particles in orbit around a nucleus. by electrical attraction between the nucleus and the electrons. We have been useing that same theory for almost eighty years now and it looks like we are not going to change it still. When it fell back down, a photon was given off. ) Quantum theory was developed principally over a period of thirty years.
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