Question

The potential energy of the Neon crystal is described by the expression:

equation
where equation and equation. Calculate the lattice parameter of the Neon crystal (fcc structure).

29 Jan 2026
Answer :
Word Count : 164
The potential energy of the Neon crystal is given by: [ U(r) = -4 \varepsilon \left[ \left( \frac{\rho_0}{r} \right)^6 - \left( \frac{\rho_0}{r} \right)^{12} \right] ] where (\varepsilon = 3.12 \times 10^{-3}\ \text{eV}) and (\rho_0 = 2.82\ \text{Å}). For equilibrium, the potential ______ _____ __________ _____ ____ _____ _________ _______ ___ _____ ___.
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