Bohr's Model of the Hydrogen Atom, introduced by Niels Bohr in 1913, describes how electrons move in quantized orbits around the atom's nucleus with fixed energy levels. The closest orbit has the lowest energy and is the most stable, while electrons can move to higher orbits by absorbing energy.
The concept being described relates to Bohr's Model of the Hydrogen Atom, which is a fundamental part of atomic physics. Niels Bohr proposed this model in 1913 to explain the behavior of electrons within a hydrogen atom. The model outlines that electrons can only circle the nucleus in certain allowed orbits, each associated with a definitive energy level that is fixed.
According to Bohr's theory, these orbits or energy levels are quantized, meaning that the electrons can only occupy specific energy states. The lowest energy state, or the n=1 orbit, is the closest to the nucleus and is the position where the electron is most tightly bound to the nucleus.
Furthermore, electrons can transition to higher energy levels by absorbing energy, moving to orbits farther from the nucleus. This quantization is analogous to the distinct rungs on a ladder or the keys on a piano, which emphasize that there are no intermediate steps or notes between the established ones.