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Copper(II) oxide or cupric oxide or black copper oxide has 2 atoms per molecule: 1 copper atom and 1 oxygen atom.
Copper(I) oxide or cuprous oxide or red copper oxide has 3 atoms per molecule: 2 copper atoms and 1 oxygen atom.
These are the only stable oxides of copper.
Wiki User
∙ 6y ago
Wiki User
∙ 13y agoCu is a transition metal and O is a nonmetal. The subscript 2 indicates two Cu atoms, therefore there are 2 metal atoms.
Wiki User
∙ 6y agoCopper(II) oxide contain two atoms in the molecule.
Wiki User
∙ 14y agoFour.
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∙ 13y agotwo
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