101Md
Mendelevium
멘델레븀 · メンデレビウム
Actinide
Atomic number101
ElementMd — Mendelevium
Atomic mass258
CategoryActinide
Group3
Period7
Electron config[Rn] 5f13 7s2
Shells2,8,18,32,31,8,2
State (RT)Solid
Melting ptNo data
Boiling ptNo data
Electronegativity1.3
Discovered1955
Main usesResearch only
2 · 8 · 18 · 32 · 31 · 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 CuriumBk BerkeliumCf CaliforniumEs EinsteiniumFm FermiumNo NobeliumLr Lawrencium