Problem: Of the compounds below, __________ has the smallest ionic separation.A) KFB) K2SC) RbClD) SrBr2E) RbF

FREE Expert Solution

We are asked which of the compounds has the smallest ionic separation.

  • This relates to the lattice energy. 
  • The lower the lattice energy, the smaller the ionic separation. 

To estimate the lattice energy (or ionic bond energy) of an ionic compound, we will use the following equation:

Radius = period number


To determine the cation and anion charge, recall that some elements have common charges based on what group they belong to on the periodic table:

View Complete Written Solution
Problem Details

Of the compounds below, __________ has the smallest ionic separation.

A) KF

B) K2S

C) RbCl

D) SrBr2

E) RbF