Saunders,+Zachary

Copper;Cu Copper has bine mined for more than 5,000 years. Atomic number 29 Atomic weight: 63.546 Valance electrons: 1 or 2 Specific gravity: 8.96 Interesting facts: copper can exists free in nature, American coins contain copper,In modern day Iraq, archeologists once found a copper pendant over 10,000 years old Uses: wiring in homes; pluming, cookware, wind chimes, art Density: 8.96 Melting Point (K): 1356.6 Element classification: transition metalBoiling Point (K): 2840 Appearance: Malleable, ductile, reddish-brown metal Atomic Radius: 128 Atomic Volume**:** 7.1 Covalent radius**:** 117 price per pound:$10 Oxidation States: 2, 1 Protons: 29 Electrons: 34 References;[] [] Electron con figuration: [Ar] 4s1 3d Who found it: Nobody knows. But evidence suggests that copper was the first metal ever discovered and used by man. Or at least one of the oldest.