Atomic symbol: Cu
Atomic number: 96
Atomic mass: 247
Appearance: Silvery white solid at 25°C
Electron configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d¹⁰ 6s² 6p⁶ 5f⁷ 6d¹ 7s²
Hard, dense, and radioactive metal.
Harmful to the human body as it destroys bone marrow and prevents new red blood cells from forming.
Glows red in the dark.
Fun Fact! This element was named after scientists Marie and Pierre Curie, but was not discovered by them.