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Niels Henrik David Bohr was born on October 7, 1885 in Copenhagen, Denmark. He died November 18, 1962. He was a Danish physicist who made great contributions to the understanding of atomic structure and quantum mechanics. He even received the Nobel Prize in Physics in 1922. At his institute in Copenhagen he studied with a lot of the very top physicists of the century. He worked on the Manhattan Project along with a group of other physicists.

Bohr's Model

Niels Bohr's model of the atom shows the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus.
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The negatively charged electron are stuck in a atomic shell encircles a small, positively charged atomic nucleus and where an electrons jump between orbits is accompanied by an emitted or absorbed amount of electromagnetic energy.