r Ca+ = 94 pm
r O2- = 146pm.
predict the str. of
solid?
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Answered by
1
Answer:
The ratio
r+
r-
=
94
146
=0.644
The prediction is an octahedral arrangement of the oxide ions around the calcium. Because the ions have equal but opposite charges, there must also be an octahedral arrangement of calcium ions around oxide ions. Thus CaO structure is similar to Rock Salt (NaCl) structure.
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Explanation:
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