Lattice Energy
| Formula / Notation | U = −Mz₊z₋e²Nₐ/(4πε₀r₀)(1−1/n); Born-Landé equation |
|---|---|
| Also Known As | Lattice dissociation energy, U_L, ionic lattice energy, Madelung energy |
What is Lattice Energy?
The energy released when gaseous ions combine to form a solid ionic lattice, or equivalently, the energy required to separate one mole of ionic solid into its constituent gaseous ions. Larger magnitude lattice energies indicate more stable ionic compounds. Calculated via Born-Haber cycle.
Formula & Notation
Other Names / Synonyms: Lattice dissociation energy, U_L, ionic lattice energy, Madelung energy
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
The energy released when gaseous ions combine to form a solid ionic lattice, or equivalently, the energy required to separate one mole of ionic solid into its constituent gaseous ions. Larger magnitude lattice energies indicate more stable ionic compounds. Calculated via Born-Haber cycle.
Lattice energy determines ionic compound properties: hardness, melting point, solubility (balance of lattice energy vs. hydration energy), and thermal stability. High lattice energy (MgO: ~3850 kJ/mol) gives high melting point refractory material; low lattice energy (CsI: ~600 kJ/mol) gives low melt…
No direct safety concern. Compounds with very high lattice energy (oxides, fluorides of small highly charged ions) are chemically resistant but require very high temperatures for processing. Compounds with very low lattice energy (some metal iodides, perchlorates) dissolve readily, potentially relea…
The formula or notation for Lattice Energy is: U = −Mz₊z₋e²Nₐ/(4πε₀r₀)(1−1/n); Born-Landé equation