Limitations of Bohr's Theory

The video discusses Bohr's theory, which explains the stability of atoms and the quantization of electron orbits. It highlights the limitations of Bohr's theory, such as its inability to explain fine spectra, multi-electronic systems, and phenomena like the Zeeman and Stark effects. The video also introduces wave-particle duality, suggesting that if electrons behave as waves, Bohr's concept of circular orbits is incorrect.

What was one of Bohr's key contributions to atomic theory?

• Introduction of electron spin

• Theory of relativity

• Concept of quantization

• Discovery of the neutron

Why couldn't Bohr's theory explain the fine spectra of atoms?

• It ignored the nucleus

• It only considered electron spin

• It was limited to single-electron systems

• It was based on classical mechanics

Which effect involves the splitting of spectral lines in a magnetic field?

• Stark effect

• Photoelectric effect

• Zeeman effect

• Compton effect

What phenomenon could Bohr's theory not explain when a spectrum source is placed in an electric field?

• Zeeman effect

• Compton effect

• Photoelectric effect

• Stark effect

According to de Broglie, how does an electron behave?

• As both a particle and a wave

• As a magnetic field

• Only as a wave

• Only as a particle