Lattice Energy (U)
Lattice energy is the energy required to separate one mole of a solid ionic compound into its gaseous ions. It is an indication of the strength of the ionic bonds in the crystal.
U ≈ (1202.5 · v · z⁺ · z⁻ / r₀) · (1 − 34.5 / r₀)
Last updated: April 13, 2026
Lattice Energy Calculator
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