39Y
Yttrium
이트륨 · イットリウム
Transition metal
Atomic number39
ElementY — Yttrium
Atomic mass88.906
CategoryTransition metal
Group3
Period5
Electron config[Kr] 4d1 5s2
Shells2,8,18,9,2
State (RT)Solid
Melting pt1526°C
Boiling pt3336°C
Electronegativity1.22
Discovered1794
Main usesLED phosphors, superconductors
2 · 8 · 18 · 9 · 2
Group 3
Sc ScandiumLa 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 NobeliumLr Lawrencium