The highest lattice energy corresponds to

Question

The highest lattice energy corresponds to (A) MgO (B) CaO (C) SrO (D) BaO

Tardigrade Admin · Accepted Answer

Lattice energy propto charge of ion propto (1/ text size of ion ) On moving downward, the size of alkaline earth metals increases due to increase in number of shells. Thus, Mg has the smallest size. Hence, lattice energy is highest for MgO.

Q. The highest lattice energy corresponds to

MgO

CaO

SrO

BaO

Lattice energy $\propto$ charge of ion $\propto \frac{1}{size of ion}$
On moving downward, the size of alkaline earth metals increases due to increase in number of shells.
Thus, $M g$ has the smallest size. Hence, lattice energy is highest for $M g O$ .

Q. The highest lattice energy corresponds to

MgO

CaO

SrO

BaO

Lattice energy ∝ charge of ion ∝ size of ion 1​ On moving downward, the size of alkaline earth metals increases due to increase in number of shells. Thus, Mg has the smallest size. Hence, lattice energy is highest for MgO.

Lattice energy $\propto$ charge of ion $\propto \frac{1}{size of ion}$
On moving downward, the size of alkaline earth metals increases due to increase in number of shells.
Thus, $M g$ has the smallest size. Hence, lattice energy is highest for $M g O$ .