ELEMENTLE

Element 110 · Transition Metal

Darmstadtium

Period 7 · Group 10

Darmstadtium is a 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.

Three reasons Darmstadtium stands out

  1. 1

    Named after German city known for it's wedding tower.

  2. 2

    It was first created in 1994 by a team of German researchers using a heavy-ion accelerator.

  3. 3

    Only a handful of atoms have ever been produced, each surviving for only microseconds before decaying.

A city commemorated by a few fleeting atoms

Darmstadtium was created at the GSI laboratory in Darmstadt by fusing nickel and lead nuclei. The experiment identified only a handful of decay chains, yet that evidence was enough to establish element 110. Predictions place it below platinum, modified by strong relativistic effects.

Recognizing Darmstadtium in Elementle

If Darmstadtium is the mystery element, guesses below atomic number 110 point up and guesses above it point down. Its symbol is Ds: a green letter matches the same position in that symbol, while a yellow letter belongs in another position.

The family clue turns green for transition metal guesses. Compare Meitnerium (Mt), number 109 and Roentgenium (Rg), number 111: they share the family clue, but their atomic numbers and symbols help you tell them apart.

Learn how to read the clues or play the daily element guessing game.

Darmstadtium at a glance
Atomic number / protons110
SymbolDs
Family (Elementle)Transition Metal
Classification (PubChem)Transition metal
Period7
Group10
Atomic mass (u)282.166
Standard stateBulk state not experimentally established
Electron configuration[Rn]7s2 5f14 6d8 (predicted)
Reported oxidation states8, 6, 4, 2, 0
Electronegativity (Pauling)Not available
Atomic radius (pm)Not available
First ionization energy (eV)Not available
Electron affinity (eV)Not available
Density (g/cm³)Not available
Melting pointNot available
Boiling pointNot available
Discovery (PubChem)1994

Values are reference data, not a specification for every temperature, pressure, or allotrope. Unknown properties are left unavailable. Superheavy-element predictions remain uncertain.

Sources & further reading

PubChem: Darmstadtium · Darmstadtium on Wikipedia

The introduction and original editorial story are adapted from Wikipedia contributors via Periodic-Table-JSON. Element descriptions and their adaptations are available under CC BY-SA 3.0. Numerical attributes use the PubChem periodic-table dataset, retrieved September 22, 2026.