is copper a type of metal
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is copper a type of metal
what type of metal is copper
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is copper a metal or non metal
is copper a metal or a nonmetal
is copper a mineral or metal
is copper made of metal
what metal is copper
is copper a pure metal
copper is what type of an element
is copper a metallic element
is copper metal an element or compound
is copper a type of metal, what type of metal is copper, which type of metal is copper, type of metal that copper is an example of, is copper a metal or non metal, is copper a metal or a nonmetal, is copper a mineral or metal, is copper made of metal, what metal is copper, is copper a pure metal, copper is what type of an element, is copper a metallic element, is copper metal an element or compound
