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Niels Henrik David Bohr (7 October 1885 – 18 November 1962) was a Danish theoretical physicist who made foundational contributions to understanding atomic structure and quantum theory, for which he received the Nobel Prize in Physics in 1922. Bohr was also a philosopher and a promoter of scientific research.
Bohr called his electron shells, "rings" in 1913. Atomic orbitals within shells did not exist at the time of his planetary model. Bohr explains in Part 3 of his famous 1913 paper that the maximum electrons in a shell is eight, writing: "We see, further, that a ring of n electrons cannot rotate in a single ring round a nucleus of charge n e ...
Such experiments demonstrate that particles do not form the interference pattern if one detects which slit they pass through. [71]: 73–76 According to Bohr's complementarity principle, light is neither a wave nor a stream of particles. A particular experiment can demonstrate particle behavior (passing through a definite slit) or wave behavior ...
It illustrates the counter-intuitive implications of Bohr's Copenhagen interpretation when applied to everyday objects. [1] A thought experiment is a hypothetical situation in which a hypothesis, theory, [a] or principle is laid out for the purpose of thinking through its consequences.
Bohr did not like a scientist having to choose between equations. [9] This disagreement was perhaps the first real Bohr-Einstein debate. Einstein had proposed the photon in 1905, and Arthur Compton provided experiment in 1922 with his Compton effect, but Bohr refused to believe the photon existed
Bohr considered one of the foundational truths of quantum mechanics to be the fact that setting up an experiment to measure one quantity of a pair, for instance the position of an electron, excludes the possibility of measuring the other, yet understanding both experiments is necessary to characterize the object under study. In Bohr's view, the ...
Bohr, meanwhile, defended the idea that quantum systems can only have their own reality defined after the scientist has set up the experimental design. “God does not play dice,” Einstein said.
where a 0, called the Bohr radius, is equal to 0.0529 nm. The Bohr radius is the radius of the smallest allowed orbit. The energy of the electron is the sum of its kinetic and potential energies. The electron has kinetic energy by virtue of its actual motion around the nucleus, and potential energy because of its electromagnetic interaction ...