108Hs269.1336
Hassium
Transition Metal
Solid at STP
Period 7Group 8Block DDiscovered 1984
[Rn]7s2 5f14 6d6
Hassium is a chemical element with symbol Hs and atomic number 108, named after the German state of Hesse. It is a synthetic element (an element that can be created in a laboratory but is not found in nature) and radioactive; the most stable known isotope, 269Hs, has a half-life of approximately 9.7 seconds, although an unconfirmed metastable state, 277mHs, may have a longer half-life of about 130 seconds. More than 100 atoms of hassium have been synthesized to date.
📖 Read more on Wikipedia →Atomic Properties
| Atomic Number | 108 |
| Atomic Mass | 269.1336 u |
| Electron Configuration | [Rn]7s2 5f14 6d6 |
| Oxidation States | 8, 6, 5, 4, 3, 2 |
| Block | D |
Physical Properties
| Standard State | Solid |
| CPK Color | #E6002E |
Classification
| Category | Transition Metal |
| Group Block | Transition metal |
| Period | 7 |
| Group | 8 |
| Block | D |
Discovery
| Year Discovered | 1984 |
| Discovered By | Gesellschaft für Schwerionenforschung |
| Electron Shells | 2, 8, 18, 32, 32, 14, 2 |