All of the following have cleavage planes except
Correct answer: D. metallic crystals
- A. ionic crystals
- B. covalent crystals
- C. molecular crystals
- D. metallic crystals
Explanation
Cleavage is the tendency of a crystal to break along specific planes of weakness, resulting in smooth surfaces. Different types of crystals exhibit cleavage to varying degrees.Metallic crystals: Metallic crystals typically do not have cleavage planes. Metals have a more delocalized structure with a sea of electrons, and the lack of distinct planes of weakness makes them less prone to cleavage.
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