Transcript
In 1913, Niels Bohr decoded the mysterious yellow lines in hydrogen gas.
For years, scientists were baffled by these specific colors. They could not explain why only those wavelengths appeared.
So, Bohr pictured the atom like a tiny solar system. Electrons orbited a dense nucleus, but only in fixed circles.
He published five postulates in 1913 to define these allowed orbits.
When an electron jumps to a lower orbit, it emits a photon. The light energy equals the difference between the two levels.
This perfectly explained the hydrogen spectrum. The chaotic glow was actually a hidden code of energy levels.
This work earned Bohr the Nobel Prize in 1922. It proved that electron energy is quantized, not continuous.
Today, teachers still use this model because it visualizes energy simply. This framework remains a cornerstone of introductory physics. As heard: In nineteen thirteen, Niels Bohr decoded the mysterious yellow lines in hydrogen gas. For years, scientists were baffled by these specific colors. They could not explain why only those wavelengths appeared. So, Bohr pictured the atom like a tiny solar system. Electrons orbited a dense nucleus, but only in fixed circles. He published five postulates in nineteen thirteen to define these allowed orbits. When an electron jumps to a lower orbit, it emits a photon. The light energy equals the difference between the two levels. This perfectly explained the hydrogen spectrum. The chaotic glow was actually a hidden code of energy levels. This work earned Bohr the Nobel Prize in nineteen twenty-two. It proved that electron energy is quantized, not continuous. Today, teachers still use this model because it visualizes energy simply. This framework remains a cornerstone of introductory physics.