![]() On the other hand, when treated as a wave we can predict the position of the electron wave but the momentum cannot be precisely measured. His work evolved the understanding of wave particle duality as when treated as a particle we can easily measure the momentum of a particle but as it is spread out and moving we cannot predict its position. This relates to the difficult in measuring the quantum values of an electron all at once and was the first time that a scientist had hypothesised that with the precise measurement of one value for example the momentum of the electron, then the position of the electron would be more unknown and less precise. Today, scientists use an atomic model that. His theory went further to also identify that the more precise the position of the electron the less precise the momentum would be. In 1932, James Chadwick discovered the neutron a particle with no charge in the nucleus of the atom. Atomic theory traces its origins to an ancient philosophical tradition known as atomism. His theory states that there is uncertainty in measuring such features of a particle as the position and momentum of an electron are hard to predict. 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. ![]() and the maximum number of electrons that can be accommodated in the outermost shell of an atom is 8. The model proposes that the maximum number of electrons that can be accommodated in any particular orbit is 2n 2 where n is the number of orbits. According to this model, In an atom, the electrons revolve around the nucleus in definite energy levels called orbits/shells. ![]() Heisenberg developed a mathematical way of expressing the energy levels of electrons in atoms. Bohr’s Model is an atomic model proposed by a Danish Physicist Niels Bohr in 1913. Heisenberg’s uncertainty principle followed the work of Albert Einstein and Max Planck in 1927. ![]()
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