Lutecij
71
Lu
Skupina
n/a
Perioda
6
Blok
d
Protoni
Elektroni
Neutroni
71
71
104
Opća svojstva
Atomski broj
71
Relativna atomska masa
174,9668
Maseni broj
175
Kategorija
Lantanoidi
Boja
Srebrna
Radioaktivan
Ne
Lutecija je drevni naziv za Pariz
Kristalna struktura
Jednostavna heksagonska
Povijest
French chemist Georges Urbain successfully separated lutetium from ytterbia in 1907 in Paris.
Austrian scientist Carl Auer von Welsbach and American chemist Charles James also succeeded in isolating lutetium independently in the same year.
Pure lutetium metal was first produced in 1953.
Austrian scientist Carl Auer von Welsbach and American chemist Charles James also succeeded in isolating lutetium independently in the same year.
Pure lutetium metal was first produced in 1953.
Elektrona po ljusci
2, 8, 18, 32, 9, 2
Elektronska konfiguracija
[Xe] 4f14 5d1 6s2
Lutetium was the last natural rare earth element to be discovered
Fizikalna svojstva
Agregacijsko stanje
Čvrsto
Gustoća
9,84 g/cm3
Talište
1925,15 K | 1652 °C | 3005,6 °F
Vrelište
3675,15 K | 3402 °C | 6155,6 °F
Toplina taljenja
22 kJ/mol
Toplina isparavanja
415 kJ/mol
Specifični toplinski kapacitet
0,154 J/g·K
Zastupljenost u Zemljinoj kori
0,000056%
Zastupljenost u svemiru
1×10-8%
CAS broj
7439-94-3
PubChem CID broj
23929
Atomska svojstva
Atomski radijus
174 pm
Kovalentni radijus
187 pm
Elektronegativnost
1,27 (Paulingova ljestvica)
Potencijal ionizacije
5,4259 eV
Atomski volumen
17,78 cm3/mol
Toplinska vodljivost
0,164 W/cm·K
Stanja oksidacije
3
Primjene
Lutetium oxide is used to make catalysts for cracking hydrocarbons in the petrochemical industry.
Lutetium aluminum garnet has been proposed for use as a lens material in high refractive index immersion lithography.
Lutetium is used as a phosphor in LED light bulbs.
Lutetium aluminum garnet has been proposed for use as a lens material in high refractive index immersion lithography.
Lutetium is used as a phosphor in LED light bulbs.
Lutetium is considered to be non toxic
Izotopi
Stabilni izotopi
175LuNestabilni izotopi
150Lu, 151Lu, 152Lu, 153Lu, 154Lu, 155Lu, 156Lu, 157Lu, 158Lu, 159Lu, 160Lu, 161Lu, 162Lu, 163Lu, 164Lu, 165Lu, 166Lu, 167Lu, 168Lu, 169Lu, 170Lu, 171Lu, 172Lu, 173Lu, 174Lu, 176Lu, 177Lu, 178Lu, 179Lu, 180Lu, 181Lu, 182Lu, 183Lu, 184Lu