110
Ds
281
Darmstadtium
Unknown
Group 10
Period 7
Block d
Darmstadtium is a chemical element of the periodic table with chemical symbol Ds and atomic number 110 with an atomic weight of 281 u and is classed as unknown and is part of group 10 (nickel group). Darmstadtium is solid at room temperature.
Darmstadtium in the periodic table
| Symbol | Ds |
| Atomic number | 110 |
| Group | 10 (Nickel group) |
| Period | 7 |
| Block | d |
| Classification | Unknown |
| Appearance | - |
| Color | - |
| Number of protons | 110 p+ |
| Number of neutrons | 171 n0 |
| Number of electrons | 110 e- |
From Wikipedia, the free encyclopediaDarmstadtium 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.
Physical properties
| Phase at STP | Solid |
| Density | 34.8 g/cm3 |
| Atomic weight | 281 u |
Thermal properties
Atomic properties
| Electronegativity (Pauling Scale) | - |
| Electron affinity | - |
| Oxidation states | (0), (+2), (+4), (+6), (+8) (predicted) |
| Ionization energies |
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Electron configuration for darmstadtium
Electron configuration Shorthand configuration | [Rn] 5f14 6d8 7s2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Full configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d8 7s2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Electron configuration chart |
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| Electrons per shell | 2, 8, 18, 32, 32, 16, 2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Valence electrons | 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Valency electrons | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Bohr model | Figure: Shell diagram of Darmstadtium (Ds) atom. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Orbital Diagram
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The history of Darmstadtium
| Discovery | Gesellschaft für Schwerionenforschung (1994) |
| Named by | GSI |
Discovery of darmstadtium Darmstadtium was first synthesized in November 1994 at GSI in Darmstadt by Sigurd Hofmann and colleagues using cold fusion of nickel-62 ions on lead-208 targets. The element was named after the city of Darmstadt, where it was discovered, and the name was officially adopted by IUPAC in 2003. Only short-lived isotopes have been observed. | |
| Original word | Darmstadt |
| Language of origin | German |
| Name source | Place |
| Meaning | “Darmstadt” |
| Country | Germany |
Naming The element is named after the German city of Darmstadt, home of the GSI laboratory where it was first synthesised. | |
Identifiers
List of unique identifiers for Darmstadtium in various chemical registry databases| CAS Number | 54083-77-1 |
| ChemSpider ID | - |
| EC number | - |
| PubChem CID Number | 135476787 |