Who gave the quantum model of hydrogen atom?

The quantum model of the hydrogen atom was proposed by Niels Bohr in 1913. Bohr’s model was a significant advancement over previous atomic models, as it introduced the idea of quantized energy levels within an atom. Based on the work of Planck and Einstein, Bohr proposed that electrons orbit the nucleus in specific, discrete energy levels or “shells,” and that they could only occupy these levels without radiating energy. Electrons could jump between these levels by absorbing or emitting quantized amounts of energy, which explained the observed spectral lines of hydrogen.