Darmstadtium is a synthetic chemical element with symbol Ds and atomic number 110. It is an extremely radioactive synthetic element. The most stable known isotope, darmstadtium-281, has a half-life of approximately 10 seconds.

Atomic Weight: 31.4214
Density        42.24 g/cm^3.
Melting Point: 53.35
Boiling Point: 53.3223