Energy levels in an atom are organized based on what model?

The Bohr model is significant in the context of atomic structure as it was one of the first to successfully explain energy levels within an atom. Proposed by Niels Bohr in 1913, this model introduced the idea that electrons occupy specific energy levels, or orbits, around the nucleus. According to this model, each orbit corresponds to a particular energy level, and electrons can only inhabit these quantized levels. When an electron moves between levels, it absorbs or emits energy in the form of photons, which accounts for the distinct spectral lines observed in atomic emission and absorption spectra.

This quantization of energy levels was pivotal in developing quantum mechanics, and although later models have built upon Bohr's foundational ideas, his model specifically laid out the principle that energy levels are not continuous but rather discrete. Understanding this helps explain phenomena such as the stability of atoms and their electron configurations.

The other models mentioned contribute to the understanding of atomic structure but do not specifically organize energy levels in the same quantized manner that Bohr's model does. For example, the quantum model encompasses more complex principles of quantum mechanics as it considers electron probability distributions, not fixed orbits. The classic model does not correctly represent the quantum nature of electrons. The Planck model primarily