Darmstadtium Element Facts

Darmstadtium Radioactive

New elements can no longer be discovered in test-tubes. This is the Experimental Storage Ring, forming part of the equipment used in heavy element research at Darmstadt. Image Ref.(1)


Data Zone

Classification: Darmstadtium is a transition metal
Atomic weight: (281), no stable isotopes
State: solid (presumed)
Melting point:
Boiling point:
Electrons: 110
Protons: 110
Neutrons in most abundant isotope: 171
Electron shells: 2,8,18,32,32,17,1
Electron configuration: [Rn] 5f14 6d8 7s2
Density @ 20oC:
Show more, including: Heats, Energies, Oxidation, Reactions, Compounds, Radii, Conductivities
Atomic volume:
Specific heat capacity
Heat of fusion
Heat of atomization
Heat of vaporization
1st ionization energy
2nd ionization energy
3rd ionization energy
Electron affinity
Minimum oxidation number
Min. common oxidation no.
Maximum oxidation number
Max. common oxidation no.
Electronegativity (Pauling Scale)
Polarizability volume
Reaction with air
Reaction with 15 M HNO3
Reaction with 6 M HCl
Reaction with 6 M NaOH
Atomic radius
Ionic radius (1+ ion)
Ionic radius (2+ ion)
Ionic radius (3+ ion)
Ionic radius (1- ion)
Ionic radius (2- ion)
Ionic radius (3- ion)
Thermal conductivity
Electrical conductivity
Freezing/Melting point:

Discovery of Darmstadtium

Darmstadtium was first synthesized by research scientists at the Heavy Ion Research Laboratory in Darmstadt, Germany in 1994.

The element was made by bombarding lead-208 atoms with nickel-62 atoms in a heavy ion accelerator.

Four atoms of darmstadtium were produced in the first experiment.

The element is named after the city where it was first made.

In addition to darmstadtium, the Heavy Ion Research Laboratory has been responsible for the discovery of several heavy elements: bohrium in 1981, meitnerium in 1982, hassium in 1984, roentgenium in 1994, and copernicium in 1996.

Darmstadtium Radioactive

Darmstadtium is radioactive.

Appearance and Characteristics

Harmful effects:

Darmstadtium is a synthetic radioactive metal and has only been produced in tiny amounts.


Dubnium is a radioactive synthetic metal and has only been produced in tiny amounts.

Uses of Darmstadtium

Darmstadtium is of research interest only.

Abundance and Isotopes

Abundance earth’s crust: nil

Abundance solar system: nil

Cost, pure: per 100g

Cost, bulk: per 100g

Source: Darmstadtium is a synthetic radioactive metal, created via nuclear bombardment, and has only been produced in minute amounts. Darmstadtium is produced by bombarding 208Pb with 62Ni.

Isotopes: Darmstadtium has 8 isotopes whose half-lives are known, with mass numbers from 267 to 281. None are stable. The most stable isotope is 281Ds, with a half-life of 11.1 seconds.


1. Image by LSDSL.

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