Question

Which compound among mgf2 and nacl has high lattice energy?

Answer 1

Answer:

please mark this as brainlest answer

Explanation:

lattice energy depends upon two factors:

charge on ion (greater the charge higher is the lattice energy)

size of ion (smaller the size of ion greater is the lattice energy)

Among KCl and MgO, K has charge +1 and Mg has charge +2. Also, K

+

has larger ionic radii than Mg

+2

. So, both the factors add up and the lattice energy of MgO is higher than KCl.

LiF and LiBr have the same cation and same ionic charge. So lattice energy depends upon the size of anion. F

−

is smaller than Br

−

, therefore, lattice energy of LiF is higher than LiBr.

MgF

2

has a charge +2 while NaCl has a charge +1. Therefore, lattice energy of MgF

2

is higher than NaCl.