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 ...

This defied the existing atomic model, which assumed atoms were uniformly spread out. From this, Rutherford proposed a ...

In 1913, Niels Bohr revised Rutherford's model by suggesting that the electrons ... However, there was still a difference between the atomic number of the atom and the atomic mass.

THAT the intra-atomic charge of an element is determined ... of an atom is not a purely positive charge, as on Rutherford’s tentative theory, but is the difference between a positive and a ...

Niels Bohr's Nobel Lecture on December 11, 1922, titled The Structure of the Atom, is one of the most significant ...

Ernest Rutherford's family emigrated from England to New Zealand before he was born. They ran a successful farm near Nelson, where Ernest was born. One of 12 children, he liked the hard work and ...