It was introduced to bypass the objections that were put forward against the Rutherford model which stated that ... for example, helium atom which possesses only two electrons.

Photo: Niels Bohr's research notes for his new atomic theory Rutherford's find came from a very strange experience. Everyone at that time imagined the atom as ... Rutherford's model wasn't quite ...

When World War I ended, he returned to his native England to rejoin the mentor of his undergraduate days, Ernest Rutherford ... mass of the atom). For example, a helium atom has an atomic mass ...