Based on Kapustinskii equation, calculate the lattice energy of AIF3. Given that: W =1.079 x 105 kJ.pm/mol and ionic radii are: Al3+= 53 pm and F= 119 pm. -2509 kJ/mol -1882 kJ/mol -7528 kJ/mol -5510 kJ/mol -5215 kJ/mol