Which metallic properties are caused by atoms rolling over each other in metallic bonds?

In a metal, layers of atoms can slide or roll past one another while the metallic bond remains intact. This makes metals malleable, meaning they can be hammered into shape, and ductile, meaning they can be drawn into wires. Shininess and conductivity result from the behavior of mobile electrons, not the sliding of atoms. Therefore, the correct choice is malleability and ductility.

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