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what element family is copper in
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what type of element is copper
what kind of element is copper
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what is coppers family name
what mineral group does copper belong to
copper belongs to which group
what element family is copper in, copper element family, copper element family name, what type of element is copper, what kind of element is copper, what element is copper, is copper a element, copper family name periodic table, is copper a chemical element, what is coppers family name, what mineral group does copper belong to, copper belongs to which group
