Why are the melting points of the alkaline earth oxides (CaO,SrO, and BaO) so much higher than those of the other two compounds in the table?

A.
Smaller ions have lower lattice energy.
B.
Smaller ionic charges lead to higher lattice energy.
C.
Larger ions have higher lattice energy.
D.
Higher ionic charges lead to higher lattice energy.
Chemistry
AP
College Board
Exam No:AP Chemistry Problem Set 5 Year:2024 Question No:APChemistry2024AP0330

Answer:

D

Knowledge points:

3.10 Solubility

Solution:

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