👤 whose
Whose model placed electrons in fixed orbits around the nucleus?
PhysicsQuantum theory
Quick Answer
Niels Bohr’s atomic model. In 1913, he used quantized orbits to explain atomic spectra.
The Full Story
Niels Bohr built on Rutherford’s nucleus and proposed in 1913 that electrons can occupy only certain allowed orbits. Electrons emit or absorb energy when they jump between these levels, which helps explain the line spectrum of hydrogen. The model was a major step toward quantum theory, even though it was later replaced by more advanced quantum-mechanical descriptions. It remains one of the most famous historical models of the atom.
Key Facts
1.Published in 1913
2.Explains hydrogen spectral lines
3.Introduced quantized electron energy levels
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Suggested video title for this topic:
"The atom was not a tiny solar system — but Bohr’s model made it make sense for a while."