For example, according to classical physics, the electrons orbiting the nucleus should lose energy until they spiral down into the center, collapsing the atom. Bohr proposed adding to the model ...

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 ... at a sheet of gold foil only ...

Bohr's 'solar system' model of the atom is the way that most people think ... using a sheet of beryllium and a paraffin block instead of gold foil. He was able to prove that a proton-sized neutral ...