Name two compounds with more exothermic lattice energies than scandium oxide and justify your choice.

1 .

2.

Explanation:

The more stable the ionic compound, the more is it lattice energy.

Scandium oxide () is an oxide in which behaves as cation and behaves as anion.

The compounds which has higher lattice energy than scandium oxide are:

1 .

This is because the charge are same on the cation and the anion as in the case of the Scandium oxide but the size of the cation is smaller than . Thus, this corresponds to higher lattice energy.

2.

This is because the charge on the cation is greater than that of and also the size of the cation is smaller than . Thus, this corresponds to higher lattice energy.

the answer is 1 i believe