In 1913, only the barest outlines of the structure of the atom had been drawn. Frederick Soddy, although struggling to understand how an electron could be emitted from the nucleus during beta ...

That is the way physicists have determined the structure of the atom. Pellets have been radium particles, X-rays and, lately, cosmic rays.

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 a "plum pudding." That is, it was ...

Physicists from both New Zealand and Britain have been credited with splitting the atom — but there is consensus that it was not an American.

Physicists from both New Zealand and Britain have been credited with splitting the atom — but there is consensus that it was not an American.