110 · Ds
Darmstadtium
Produced at GSI in 1994. The name darmstadtium adopted in 2003.
Identity
- Atomic number
- 110
- Symbol
- Ds
- Canonical name
- Darmstadtium
- Category
- classification unsettled
- Group
- 10
- Period
- 7
- Block
- d
Bulk chemistry is not established. The table column is not a confirmed family.
Properties
These quantities come from the Periodic Table JSON compilation. They have not yet been checked, one by one, against CIAAW atomic weights or NIST measurements. A value marked estimated is not a measurement.
- Atomic mass
- [281] No standard atomic weight. The number shown is the conventional mass number used in tables, not a measured mass in u.
- Electron configuration
- *[Rn] 5f14 6d9 7s1
- Electrons per shell
- 2, 8, 18, 32, 32, 16, 2
- Standard state
- not established
- Density
- 34.8 g/cm³ (estimated) Predicted value: the element has not been observed in bulk.
Notable isotopes
This summary is not an inventory of every isotope.
Conventional mass number: 281
History
Darmstadtium
Synthesis · confirmed · 1994
Hofmann and the GSI team produce element 110.
- Reaction
- 208Pb(62Ni,n)269Ds
- Target
- 208Pb
- Projectile
- 62Ni
- Isotope produced
- 269Ds
The name darmstadtium
Official recognition · officially recognized · 2003
IUPAC adopts the name darmstadtium in 2003.
Etymology
- Theme
- place
- Language
- allemand
- Root
- Darmstadt
- Meaning
- Darmstadt
- Temporary systematic name
- ununnilium (Uun)
- Official adoption
- 2003
Scientists
Places and institutions
- Darmstadt — historical setting : Germany — present country : Germany
See also
Sources
- IUPAC, Periodic Table of the Elements
- Bowserinator, Periodic Table JSON. Compilation secondaire d’où viennent les grandeurs physiques importées (masse, densité, températures, énergies). Elles ne sont pas revérifiées une à une auprès du NIST ou de la CIAAW.
- IUPAC, décisions sur la priorité et les noms des éléments transfermiens (1997–2016)