Back to Periodic Table
108Hs277 u

Hassium

transition metal
Atomic Number
108
Atomic Mass
277 u
Period
7
Group
8

Quick Facts

PropertyValue
SymbolHs
Atomic Number108
Atomic Mass[277] u
CategoryTransition Metal
Period7
Group8
Blockd
Electron Configuration[Rn] 5f¹⁴ 6d⁶ 7s²

History and Discovery

Discovered by: Peter Armbruster and Gottfried Münzenberg Year of Discovery: 1984 Location: GSI, Darmstadt, Germany

Etymology

Named after Hesse (Latin "Hassia"), the German state where GSI is located.

Interesting Facts

  1. Named after the German state of Hesse
  2. Predicted to resemble osmium
  3. Most stable isotope has about 10-second half-life
  4. Heaviest element to have its chemistry studied
  5. About 100 atoms have been synthesized