Lutesium
71
Lu
Groep
n/a
Periode
6
Blok
d
Protrone
Elektrone
Neutrone
71
71
104
Algemene Eienskappe
Atoom Nommer
71
Atoommassa
174,9668
Massa Nommer
175
Kategorie
Lantaniede
Kleur
Silver
Radioaktief
Nee
Lutetia is the ancient name for Paris
Kristalstruktuur
Eenvoudige seshoekige
Geskiendenis
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.
Elektrone per skil
2, 8, 18, 32, 9, 2
Elektronkonfigurasie
[Xe] 4f14 5d1 6s2
Lutetium was the last natural rare earth element to be discovered
Fisiese Eienskappe
Fase
Soliede
Digtheid
9,84 g/cm3
Smeltpunt
1925,15 K | 1652 °C | 3005,6 °F
Kookpunt
3675,15 K | 3402 °C | 6155,6 °F
Heat of Fusion
22 kJ/mol
Heat of Vaporization
415 kJ/mol
Spesifieke Hitte Kapasiteit
0,154 J/g·K
Oorvloed in die aardkors
0,000056%
Oorvloed in die heelal
1×10-8%
CAS Nommer
7439-94-3
PubChem CID Nommer
23929
Atomiese Eienskappe
Atoom radius
174 pm
Kovalente Radius
187 pm
Elektronegatiewiteit
1,27 (Pauling scale)
Ionisasie potensiaal
5,4259 eV
Atoom volume
17,78 cm3/mol
Termiese geleidingsvermoë
0,164 W/cm·K
Oksidasiestate
3
Toepassings
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
Isotope
Stabiele Isotope
175LuOnstabiele Isotope
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