Element Darmstadtium
Darmstadtium was first created in 1994 by the GSI Helmholtz Centre for Heavy Ion Research near the city of Darmstadt, Germany, after which it was named.
Darmstadtium is a synthetic chemical element with the symbol Ds and atomic number 110.
In the periodic table, it is a d-block transactinide element. It is a member of the 7th period and is placed in the group 10 elements, although no chemical experiments have yet been carried out to confirm that it behaves as the heavier homologue to platinum in group 10 as the eighth member of the 6d series of transition metals. Darmstadtium is calculated to have similar properties to its lighter homologues, nickel, palladium, and platinum.
Names and Identifiers
| Chemical Formula: | Ds |
| CAS: | 54083-77-1 |
| Molecular Weight: | 281.165 g/mol |
| EC Number : | n/a |
| MDL Number: | n/a |
| Color: | unknown (presumably metallic/ silvery white/ gray) |
| Other Names: | Darmstadtio |
| PubChem CID: | 135476787 |
| IUPAC Name: | Darmstadtium |
| Inchl: | InChI=1S/Ds |
| InChI Key: | NCBMSFCPDGXTHD-UHFFFAOYSA-N |
| Canonical SMILES: | [Ds] |
| ICSC Number: | n/a |
Physical & Chemical Properties
| Phase: | Solid |
| Density: | 34.8 g/cm³ |
| Boiling Point: | n/a |
| Melting Point: | n/a |
| Molecular Formula: | Ds |
| Flash Point: | n/a |
| Exact Mass: | 281 |
Darmstadtium has no stable or naturally occurring isotopes. Several radioactive isotopes have been synthesized in the laboratory, either by fusing two atoms or by observing the decay of heavier elements
Radiosotope data
| Isotope | Mass/Da | Half-life | Mode of decay | Nuclear spin | Nuclear magnetic moment |
|---|---|---|---|---|---|
| 267Ds | 267.1440 | 3 x 10-6 s | α to 263Hs | ||
| 268Ds | 268.1435 | ||||
| 269Ds | 269.1451 | 0.00017 s | α to 265Hs | ||
| 270Ds | 270.1446 | ||||
| 271Ds | 271.1461 | 0.0011 s | α to 267Hs | ||
| 272Ds | 272.1463 | 0.00086 s | SF | 0 | |
| 273Ds | 273.1492 | 0.00018 s | α to 269Hs | ||
| 280Ds | 280 | 7.6 s | SF | ||
| 281Ds | 281 | 1.1 m | α to 277Hs |