In 1912 Bohr joined Rutherford. He realized that Rutherford's model wasn't quite right ... to the periodic repetition of properties of the elements. The shells in which electrons orbit have ...
Bohr’s Model of an Atom: Danish Physicist Niels Bohr received his Ph.D. from the University of Copenhagen in 1911. In 1922, he was awarded the Nobel Prize in Physics for his work on the atom’s ...