Question

Arrange the following ionic compounds in order of decreasing lattice energy (decreasing strength of the ionic bond) based on general periodic trends. Start by placing the compound with the highest lattice energy at the top of the list.

A: NaF
B: MgO
C: Al₂O₃
D: KBr


A CBDA
B ADBC
C BCDA
D CDAB

Answer 1

The order of decreasing lattice energy is MgO > Al₂O₃ > NaF > KBr.

Step-by-step explanation:

The lattice energy of an ionic compound is determined by the size and charge of the ions involved. Generally, compounds with smaller, more highly charged ions will have higher lattice energies. Based on the given compounds, the order of decreasing lattice energy from highest to lowest is: MgO > Al₂O₃ > NaF > KBr.