What does Bohr's theory do for Rutherford's theory?

Bohr's theory builds on Rutherford's model by introducing quantized energy levels for electrons, addressing the instability of Rutherford's planetary model. While Rutherford proposed that electrons orbit the nucleus, Bohr explained that these orbits correspond to specific energy states, preventing electrons from spiraling into the nucleus. This quantization resolves the issue of atomic stability and explains spectral lines observed in atomic emissions, thus enhancing the understanding of atomic structure.