what is copper's atomic mass?its number of protons, neutrons, and electrons?its melting point, boiling point, and normal phase?is it a nonmetal, metal, or metalloid?what family does it belong to?its origin of name and discovered by?
Copper's atomic mass is 63.546(3)?g·mol^?1 Electrons per shell : 2, 8, 18, 1 =29 Phase :solid Density (near r.t.) 8.94 g·cm^?3 Liquid density at m.p. 8.02 g·cm^?3 Melting point 1357.77 K (1084.62 °C, 1984.32 °F) Boiling point 2835 K (2562 °C, 4643 °F) It is a ductile metal. In the Roman era, copper was principally mined on Cyprus, hence the origin of the name of the metal as Cyprium, metal of Cyprus, later shortened to Cuprum. No one knows exactly who discovered copper. Copper is a metal used by people who lived in prehistoric times. Archaeological evidences suggest people who had lived between 5000 BC and 1,200 BC discovered copper. There are many historical evidences that reveal the people of the ancient world used copper to make jewelry, utensils, and weapons such as spear tips and shields. 65Cu is stable with 36 neutrons 63Cu is stable with 34 neutrons It belong to Transition metal. In short: Name: Copper Symbol: Cu Atomic Number: 29 Atomic Mass: 63.546 amu Melting Point: 1083.0 °C (1356.15 K, 1981.4 °F) Boiling Point: 2567.0 °C (2840.15 K, 4652.6 °F) Number of Protons/Electrons: 29 Number of Neutrons: 35 Classification: Transition Metal Crystal Structure: Cubic Density @ 293 K: 8.96 g/cm3 Color: red/orange
The Wikipedia article on copper will answer these questions.
