What did Niels Bohr discover about the atomic structure?

Niels Bohr won a Nobel Prize for the idea that an atom is a small, positively charged nucleus surrounded by orbiting electrons. ... England when he was introduced to Ernest Rutherford, whose discovery of the nucleus and development of an atomic model had earned him a Nobel Prize in chemistry in 1908. read more

Niels Bohr was a Danish physicist who made fundamental contributions to understanding the structure of atoms and to the early development of quantum mechanics. In particular, he developed the Bohr model of the atom (and later the “liquid drop” model) and the principles of correspondence and complementarity. read more