103Lr
Lawrencium
로렌슘 · ローレンシウム
Actinide
Atomic number103
ElementLr — Lawrencium
Atomic mass266
CategoryActinide
Group3
Period7
Electron config[Rn] 5f14 7s2 7p1
Shells2,8,18,32,32,8,3
State (RT)Solid
Melting ptNo data
Boiling ptNo data
Electronegativity1.3
Discovered1961
Main usesResearch only
2 · 8 · 18 · 32 · 32 · 8 · 3
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 CuriumBk BerkeliumCf CaliforniumEs EinsteiniumFm FermiumMd MendeleviumNo Nobelium