Question

Why did the Bohr model need improvement?

It worked only for the hydrogen atom.
It did not explain why the atom is quantized.
It did not explain why an electron does not emit radiation as it orbits.
All these answers are correct.

Answer 1

[AI-generated answer — Bot GPT 3.5]

The Bohr model needed improvement because it only worked for the hydrogen atom and did not accurately explain the behavior of atoms with multiple electrons. Additionally, it did not provide a complete explanation for why electrons are quantized in specific energy levels and why they do not continuously emit radiation as they orbit the nucleus. These limitations indicated that the model was incomplete and required further development to accurately describe the behavior of atoms.