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Copper (symbol Cu) is a chemical element, a transition metal with atomic number 29 on the periodic table.

Characteristics and historyEdit

Copper has an atomic mass of 63.546. This element was discovered by Humans in Earth's ancient history. (ST reference: Star Fleet Medical Reference Manual)

The Vulcans and the Romulans are among two species that have copper-based blood, which causes their blood to take on a green color. (TOS episode: "The Man Trap")

When combined with sulfur to form copper sulfate it becomes a highly poisonous powder. When the copper sulfate is mixed with water, the copper sulfate forms into blue crystals, yet still has poisonous properties. (TOS novelization: The Naked Time)



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