Lattice Energy Flashcards
1
Q
Short term repulsive forces
A
When ions so close their electron clouds start to overlap, prevents molecule from collapsing in on itself
2
Q
Madelung constant
A
A, depends on geometrical arrangement of atoms
3
Q
Kapunstinskii equation
A
Gives general lattice energy independent of structure
4
Q
Melting point
A
Proportional to LE, Z+Z- and 1/bond distance
5
Q
Limitations of electrostatic model
A
Doesn’t take into account covalency so calculated LE gets worse the more covalent the material
