Question

Rank the following compounds from largest to smallest according to their expected magnitude in lattice energy. Rank from largest to smallest lattice energy To rank items as equivalent, overlap them. a. Cs1 b. KI c. MgS d. KBr e. BeO Largest Lattice Energy Smallest Lattice Energy

Answer 1

Answer:

It's inorder

b,e,d,c and a

Explanation:

Due to electronegativty difference

Answer 2

Answer:

BeO, MgS, KBr, KI, CsI

Explanation:

Hello,

The lattice energy is defined as "a measure of the energy contained in the crystal lattice of a compound, equal to the energy that would be released if the component ions were brought together from infinity", therefore it will be larger in compounds composed by ions with high charge  and ions with small radius .

Thus, the largest is BeO (2+ 2- and both of them are small), next MgS (2+ 2- as the BeO, nonetheless it has bigger ions), afterwards KBr (1+ 1- considering Br- to be smaller than I-) , then KI [1+ 1 considering I- larger than Br- and K+ smaller than Cs+]  and finally CsI.

Best regards.