107Bh
Bohrium
보륨 · ボーリウム
Transition metal
Atomic number107
ElementBh — Bohrium
Atomic mass270
CategoryTransition metal
Group7
Period7
Electron config[Rn] 5f14 6d5 7s2 (est.)
Shells2,8,18,32,32,13,2
State (RT)Solid (est.)
Melting ptNo data
Boiling ptNo data
Discovered1981
Main usesResearch only (superheavy)
2 · 8 · 18 · 32 · 32 · 13 · 2