The chemical element darmstadtium is classed as a transition metal. It was discovered in 1994 by research scientists at the Heavy Ion Research Laboratory in Darmstadt, Germany.
Data Zone
| Classification: | Darmstadtium is a transition metal |
| Color: | |
| 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: |
Reactions, Compounds, Radii, Conductivities
| Atomic volume: | – |
| Structure: | – |
| Hardness: | – |
| 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 | – |
| Oxide(s) | – |
| Hydride(s) | – |
| Chloride(s) | – |
| 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: | – |
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)
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.
Appearance and Characteristics
Harmful effects:
Darmstadtium is a synthetic radioactive metal and has only been produced in tiny amounts.
Characteristics:
Darmstadtium 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.
References
- Image by LSDSL.
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