Hassium
Hassium (𬭶, symbol Hs) is chemical element number 108, a Transition Metal in period 7, group 8 of the periodic table, with a standard atomic weight of about 269. Synthetic superheavy element. Named after Hesse, Germany.
Properties
| Atomic number | 108 |
|---|---|
| Symbol | Hs |
| Atomic mass | 269 u |
| Category | Transition Metal |
| Period | 7 |
| Group | 8 |
| Electron configuration | [Rn] 5f¹⁴ 6d⁶ 7s² |
| Electronegativity | — |
| Covalent radius | — |
| Density | 40.7 g/cm³ |
| Melting point | — |
| Boiling point | — |
| Discovery | GSI, 1984 |
Overview
Synthetic superheavy element. Named after Hesse, Germany. Hassium (symbol Hs) is chemical element number 108, sitting in period 7, group 8 of the periodic table and classed as a Transition Metal. As a transition metal it commonly shows several oxidation states, forms coloured compounds, and is widely used in catalysts and alloys.
It has the configuration [Rn] 5f¹⁴ 6d⁶ 7s²; its 2 outer-shell electrons drive its bonding. Its physical state follows from its melting and boiling points; it has a density around 40.7 g/cm³.
It is widely used in Research. It is regarded as a high-hazard element, so handle it with appropriate care. It was first described by GSI in 1984. Use the comparison tool to line it up against other elements.
Electron shells
Electrons per shell: 2 · 8 · 18 · 32 · 32 · 14 · 2
Main uses
- Research
Hazard
Compounds containing Hassium
No compounds in this knowledge base contain Hassium yet.
Data sources
Atomic mass uses IUPAC (CIAAW) standard atomic weights; the covalent radius is from Cordero et al. (2008). Verify on the RSC Periodic Table, PubChem and Wikipedia. Educational reference only.