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 ...

THE beautiful conception which inspires and co-ordinates practically the whole of modern atomic physics is the atomic model of Rutherford and Bohr. Its essential feature-the nucleus-was first put ...

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.

Changes to the atomic model Atoms have a central positive nucleus. Most of the mass of an atom is found in the nucleus. New evidence In-depth work on Rutherford's model showed it had limitations.

This defied the existing atomic model, which assumed atoms were uniformly spread out. From this, Rutherford proposed a revolutionary new model of the atom. He suggested that the atom consists of a ...

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 ...