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 ... Rutherford's model wasn't quite ...

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 ...

When an electron dropped from a high-energy orbit to a lower-energy one, it gave out light with an energy equal to the ...

Ch Frame Code Title 1 A Opening Sequence 2 02505 G Ultimate Constituents Of Matter 3 05940 H Bohr Model Of The Hydrogen Atom 4 07093 A Circular Planetary And Atomic Orbits 5 08594 A Elliptical ...