105Db
Dubnium
더브늄 · ドブニウム
Transition metal
Atomic number105
ElementDb — Dubnium
Atomic mass268
CategoryTransition metal
Group5
Period7
Electron config[Rn] 5f14 6d3 7s2 (est.)
Shells2,8,18,32,32,11,2
State (RT)Solid (est.)
Melting ptNo data
Boiling ptNo data
Discovered1967
Main usesResearch only (superheavy)
2 · 8 · 18 · 32 · 32 · 11 · 2