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3 cards from this section. Quick, good the night before a test.
What does Bohr's second postulate state about angular momentum?
Think about how many specific values it can take.
Define wave-particle duality.
What do we mean when we say particles can behave like waves?
What does the quantisation of angular momentum imply?
Remember Bohr's formulation reveals specific allowed values.
True or False: de Broglie's hypothesis supports the idea that electrons have both wave and particle characteristics.
This concept is critical in quantum physics.
A 1 MeV electron is moving in a circular orbit. Calculate its de Broglie wavelength and the radius of its orbit if it has an angular momentum of nh/2π with n = 1.
Use kinetic energy relation KE = eV to find p, relating it to wavelength thereafter.
Explain why the concept of standing waves is crucial for understanding electron orbits in multi-electron atoms.
Consider how interference might occur among multiple waves in more complex systems.
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