97Bk
Berkelium
버클륨 · バークリウム
Actinide
Atomic number97
ElementBk — Berkelium
Atomic mass247
CategoryActinide
Group3
Period7
Electron config[Rn] 5f9 7s2
Shells2,8,18,32,27,8,2
State (RT)Solid
Melting pt986°C
Boiling pt2627°C
Electronegativity1.3
Discovered1949
Main usesResearch only
2 · 8 · 18 · 32 · 27 · 8 · 2
Group 3
Sc ScandiumY YttriumLa LanthanumCe CeriumPr PraseodymiumNd NeodymiumPm PromethiumSm SamariumEu EuropiumGd GadoliniumTb TerbiumDy DysprosiumHo HolmiumEr ErbiumTm ThuliumYb YtterbiumLu LutetiumAc ActiniumTh ThoriumPa ProtactiniumU UraniumNp NeptuniumPu PlutoniumAm AmericiumCm CuriumCf CaliforniumEs EinsteiniumFm FermiumMd MendeleviumNo NobeliumLr Lawrencium