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 ...

Bohr began to work on the problem of the atom's structure. Ernest Rutherford had recently suggested the atom had a miniature, dense nucleus surrounded by a cloud of nearly weightless electrons.

(London and Toronto: Hodder and Stoughton, Ltd., 1923.) 2s. 6d. net. (2) The Atom and the Bohr Theory of its Structure: an Elementary Presentation. By H. A. Kramers Helge Holst. Translated from ...

Though this "Bohr model" of the atom is now considered relatively simplistic compared to the detailed diagrams we have now, 111 years after its inception, it is still used to introduce students to ...

Therefore, electrons cannot be arranged at random, but they must have fixed levels of energy within each type of atom. Bohr's 'solar system' model of the atom is the way that most people think ...

Niels Bohr adapted Ernest Rutherford's nuclear model. Bohr did calculations that led him to suggest that electrons orbit the nucleus in shells. The shells are at certain distances from the nucleus.

Bohr began to work on the problem of the atom's structure. Ernest Rutherford had recently suggested the atom had a miniature, dense nucleus surrounded by a cloud of nearly weightless electrons.