Periodic Table

Darmstadtium

Unknown

Quick Facts about Darmstadtium

Mt
  • solid- state of matter at room temperature
  • Radioactive- no stable isotopes exist
  • 8, 6, 4, 2, 0- common oxidation states in compounds
Rg

Darmstadtium (Ds) is element 110 on the periodic table. Atomic mass of Ds: 281.0000 u. Ds is in period 7, group 10. Density of Ds: 34.80 g/cm³.

Why Darmstadtium Matters

Darmstadtium in everyday life and industry

In Your Home

  • No commercial applications
  • Research element only
  • Very short half-life
  • Fewer than 100 atoms ever made

In Your Body

✗ Not essential

No biological role. Too unstable for study. Half-life in milliseconds to seconds.

Safety: Darmstadtium is radioactive

Discovery of Darmstadtium

Discovered by Heavy Ion Research Laboratory (HIRL) in Germany, 1994

Name origin: Named after the city of Darmstadt, Germany where GSI Helmholtz Centre for Heavy Ion Research is located.

History & Events

1994
Named after Darmstadt, Germany
1994
Discovered at GSI Darmstadt in 1994
110
Originally called 'ununnilium' (110)
1994
Part of the prolific GSI discovery series

About Darmstadtium

Named after Darmstadt, Germany; only a few atoms produced.

Atomic Properties of Ds

Atomic Number of Ds
110
Atomic Mass of Ds
281.0000 u
Electron Configuration
[Rn] 5f14 6d8 7s2
Electronegativity
Block
d-block
Group
10
Period
7

Physical Properties of Ds

Phase (STP)
solid
Melting Point of Ds
Boiling Point of Ds
Density of Ds
34.8000 g/cm3

Atomic Radii

Covalent
128 pm

Common Misconceptions

Wrong:Darmstadtium was made using uranium targets.
Correct:Darmstadtium was synthesized using lead targets bombarded with nickel beams—the 'cold fusion' approach.
Wrong:The name 'ununnilium' was meant to be permanent.
Correct:Systematic names like 'ununnilium' (one-one-zero) are IUPAC placeholders until official names are assigned.
Wrong:Most superheavy elements were discovered at one facility.
Correct:GSI Darmstadt alone discovered six elements (107-112) in the 1980s-90s, a remarkable achievement.

Isotopes of Darmstadtium

Darmstadtium has 0 naturally occurring isotopes, plus 1 notable radioactive isotope.

IsotopeAtomic Mass (u)AbundanceHalf-LifeDecay Mode
281110Ds (Ds-281)Darmstadtium-281 isotope0%9.6 sα

Data source: NIH PubChem (aggregated from IUPAC, NIST)

Uses

It has no significant commercial applications.

Sources

Made by bombarding bismuth-209 with cobolt-59.

Geochemistry

Goldschmidt
synthetic

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