Bohr, Niels

1885-1962, Danish physicist and one of the foremost scientists in modern physics. He was professor of theoretical physics at the Univ. of Copenhagen and was later director of its Institute for Theoretical Physics, which he helped to found. Bohr was awarded the 1922 Nobel Prize in physics for his work on atomic structure. Classical theory had been unable to explain the stability of the nuclear model of the Atom, but Bohr solved the problem by postulating that Electrons move in restricted orbits around the atom's nucleus and explaining how the atom emits and absorbs Energy. He thus combined the Quantum Theory with this concept of atomic structure. The element Nielsbohrium was named in his honor (see Chemical Elements).