Why does copper Copper(Cu) conduct electricity as a solid, but copper(II) fluoride (CuF2) does not?

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Ibelieve the answer is d

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.

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