#112 Copernicium

Copernicium is a synthetic chemical element with symbol Cn and atomic number 112. It is an extremely radioactive element, and can only be created in a laboratory. The most stable known isotope, copernicium-285, has a half-life of approximately 29 seconds

Atomic mass:277.amu

Melting point:Unknown

Boiling point:Unknown

Density:Unknown