What are the Bohr's postulates?
1 Answer
If I remember correctly, Bohr postulated that:
1] The Orbits permitted for an electron in a atom are Quantized, meaning that only discrete orbits, corresponding to discrete energy levels, are allowed. In these orbits the electron does not emit energy (it is a stationary state). The electron can emit or absorb energy by jumping from an orbit to another;
2] Classical mechanics works for the "motion" in the orbitals BUT do not apply to the "jumps" between orbitals;
3] The "jump" from an allowed orbit to another involves the release or absorption of energy in the form (Einstein):
4] The allowed orbitals are characterized by quantized values of orbital angular momentum
{Ref: H. C. Ohanian. Physics 2nd ed. London, WW Norton, 1985]
