Lutecij
71
Lu
Skupina
n/a
Perioda
6
Blok
d
Protons
Electrons
Neutrons
71
71
104
General Properties
Vrstno število
71
Atomska teža
174,9668
Mass Number
175
Kategorija
Lantanoidi
Barva
Silver
Radioactive
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.
Electrons per shell
2, 8, 18, 32, 9, 2
Razporeditev elektronov
[Xe] 4f14 5d1 6s2
Lutetium was the last natural rare earth element to be discovered
Physical Properties
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
Abundance in Earth's crust
0,000056%
Abundance in Universe
1×10-8%
CAS Number
7439-94-3
PubChem CID Number
23929
Atomic Properties
Atomski polmer
174 pm
Kovalentni polmer
187 pm
Elektronegativnost
1,27 (Paulingova lestvica)
Ionization Potential
5,4259 eV
Atomic Volume
17,78 cm3/mol
Toplotna prevodnost
0,164 W/cm·K
Oksidacijska stanja
3
Applications
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
Isotopes
Stable Isotopes
175LuUnstable Isotopes
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