Darmstadtium
Darmstadtium is a chemical element with the symbol Ds and atomic number 110. It is one of the so-called super-heavy atoms. This synthetic element quickly decays: its isotopes of mass 267 to 273 have half-lives measured in microseconds. Heavier isotopes of darmstadtium, of mass 279 and 281, were synthesized later and are more stable, with half-lives of 180 milliseconds and 11.1 seconds, respectively.
| General | |
|---|---|
| Name, Symbol, Number | darmstadtium, Ds, 110 |
| Chemical series | transition metals |
| Group, Period, Block | 10, 7, d |
| Appearance | unknown, probably silvery white or metallic gray |
| Standard atomic weight | [281] g·mol-1 |
| Electrons per shell | 2, 8, 18, 32, 32, 17, 1 |
| Phase | presumably a solid |
| CAS registry number | 54083-77-1 |
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