Electronic Structure and Quantum Models (4E)
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QUESTION
What is the de Broglie wavelength of a particle with momentum
p
p
p
?
QUESTION
What does Hund's rule state about filling degenerate orbitals?
QUESTION
What is the Heisenberg uncertainty principle relating position and momentum?
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ANSWER
Δ
x
Δ
p
≥
ℏ
2
\Delta x\,\Delta p \geq \frac{\hbar}{2}
Δ
x
Δ
p
≥
2
ℏ
. The principle quantifies the limit on simultaneously knowing a particle's position and momentum precisely, reflecting wave-particle duality.
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