Question
A model named for this property assumes that electrostatic interactions are sufficiently screened and that the probability of collision is inversely proportional to relaxation time. For 10 points each:
[10m] Name this property of electrons in the Drude–Sommerfeld model, an extension of which is named for electrons that “nearly” have this property. Electrons with this property are not bound to atoms.
ANSWER: free [accept (nearly) free electron model]
[10e] The free electron model also assumes this result in which each quantum state contains at most one electron.
ANSWER: Pauli exclusion principle
[10h] The nearly free electron model can be derived by adding a small perturbation to this other model that contains a vanishingly small periodic potential, which allows free electrons to travel unperturbed.
ANSWER: empty lattice model [or empty lattice approximation]
<MY, Physics>
Summary
| Great Lakes | 2025-02-01 | Y | 6 | 15.00 | 67% | 83% | 0% |
| Lower Mid-Atlantic | 2025-02-01 | Y | 1 | 10.00 | 0% | 100% | 0% |
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| Overflow | 2025-02-01 | Y | 4 | 17.50 | 75% | 100% | 0% |
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| South Central | 2025-02-01 | Y | 2 | 20.00 | 100% | 100% | 0% |
| UK | 2025-02-01 | Y | 1 | 20.00 | 100% | 100% | 0% |