Lutecij
71
Lu
Skupina
n/p
Perioda
6
Blok
d
Protoni
Elektroni
Nevtroni
71
71
104
Splošne lastnosti
Vrstno število
71
Atomska teža
174,9668
Masno število
175
Kategorija
Lantanoidi
Barva
Srebrna
Radioaktivno
Ne
Lutetia is the ancient name for Paris
Kristalna struktura
Heksagonalna
Zgodovina
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.
Elektroni po lupinah
2, 8, 18, 32, 9, 2
Razporeditev elektronov
[Xe] 4f14 5d1 6s2
Lutetium was the last natural rare earth element to be discovered
Fizikalne lastnosti
Faza snovi
Trdnina
Gostota
9,84 g/cm3
Tališče
1925,15 K | 1652 °C | 3005,6 °F
Vrelišče
3675,15 K | 3402 °C | 6155,6 °F
Talilna toplota
22 kJ/mol
Izparilna toplota
415 kJ/mol
Toplotna kapaciteta
0,154 J/g·K
Zastopanost v Zemljini skorji
0,000056%
Zastopanost v vesolju
1×10-8%
CAS številka
7439-94-3
PubChem CID številka
23929
Atomske lastnosti
Atomski polmer
174 pm
Kovalentni polmer
187 pm
Elektronegativnost
1,27 (Paulingova lestvica)
Ionizacijski potencial
5,4259 eV
Atomski volumen
17,78 cm3/mol
Toplotna prevodnost
0,164 W/cm·K
Oksidacijska stanja
3
Uporabe
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