Copper, also known as Cu, is one of the oldest elements. It's discovery dates back to prehistoric times in 9000BC. Signs of its uses were found in Iraq and North Africa. Copper has an atomic weight of 63.546 and its atomic number is 29. Its melting point is 1084.62 °C and 1984.32 °F while its boiling point is 2927 °C and 5301 °F. Copper's density is 8920 kg per cubic m.. Copper is one of the most important metals, it is a …showed first 75 words of 382 total…

…showed last 75 words of 382 total…moderately toxic upon acute oral exposure. There have been reports of human suicide resulting from the ingestion of gram quantities of this material. The lowest dose of copper sulfate that has been toxic when ingested by humans is 11 mg/kg . Ingestion of copper sulfate is often not toxic because vomiting is automatically triggered by its irritating effect on the gastrointestinal tract. Another copper compound is Copper I Chloride (CuCl). It is a white crystalline solid.