Why do the melting points of the alkaline metal oxides decrease in the order CaO > SrO > BaO?
A.
Larger ions have higher lattice energy, which leads to lower melting points.
B.
Smaller ions have lower lattice energy, which leads to higher melting points.
C.
Larger ions have lower lattice energy, which leads to lower melting points.
D.
Smaller ions have a greater affinity for oxygen, which leads to a higher melting point.
Exam No：AP Chemistry Problem Set 5 Year：2024 Question No：APChemistry2024AP0331
Answer:
C
Knowledge points:
3.10 Solubility
Solution:
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