Question

ILLIU, DUE VULLS LLLLLLL ions), which affects lattice energy (a measure of the attractive force holding those ions together). Based on ion sizes, arrange these compounds by their expected lattice energy Note that many sources define lattice energies as negative values. Please arrange by magnitude and ignore the sign. lattice energy = absolute value of the lattice energy Greatest lattice energy (strongest bonds) Least lattice energy (weakest bonds) Answer Bank Oci KC RC LICI Naci bo ply m e contact us help

Answer 1

Answer Sheet:

The lattice energy defined as the energy required to break the ionic bond to formed the constituted cations and anions or the amount of energy released to form a ionic bond from the constituted cations and anions.

The lattice energy is directly related to the charge of the cations or anions and inversely proportional to the size of the cations or anions.

Overall as we go down in a group, ionic radius increases and lattice energy decrease. In a period from left to right as the charge on ion increases, lattice increases.

The increasing order of the size of the cations is

Li​​​​​+ < Na+ < K+ < Rb​​​​​+ < Cs+

The increasing order of the lattice energy is

CsCl < RbCl < KCl < NaCl < LiCl

  Greatest Lattice Energy

LiCl

   NaCl

   KCl

   RbCl

   CsCl

Least Lattice Energy