Lutetium

71
Lu
Kumpulan
Tiada
Kala
6
Blok
d
Proton
Elektron
Neutron
71
71
104
Ciri-Ciri Am
Nombor atom
71
Berat atom
174.9668
Nombor jisim
175
Kategori
Lantanid
Warna
Perak
Radioaktif
Tidak
Lutetia is the ancient name for Paris
Struktur hablur
Hexagonal Ringkas
Sejarah
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.
Bilangan elektron per petala
2, 8, 18, 32, 9, 2
Konfigurasi elektron
[Xe] 4f14 5d1 6s2
Lu
Lutetium was the last natural rare earth element to be discovered
Ciri-Ciri Fizikal
Fasa
Pepejal
Ketumpatan
9.84 g/cm3
Takat lebur
1925.15 K | 1652 °C | 3005.6 °F
Takat didih
3675.15 K | 3402 °C | 6155.6 °F
Haba pelakuran
22 kJ/mol
Haba pengewapan
415 kJ/mol
Muatan haba molar
0.154 J/g·K
Banyak pada kerak bumi
0.000056%
Banyak pada alam semesta
1×10-8%
Ultrapure
Kredit imej: Images-of-elements
Ultrapure piece of lutetium
Nombor CAS
7439-94-3
PubChem CID Number
23929
Ciri-Ciri Atom
Jejari atom
174 pm
Jejari kovalen
187 pm
Keelektronegatifan
1.27 (Skala Pauling)
Kebolehan mengion
5.4259 eV
Isipadu atom
17.78 cm3/mol
Daya pengaliran terma
0.164 W/cm·K
Keadaan pengoksidaan
3
Aplikasi
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 is considered to be non toxic
Isotop
Isotop stabil
175Lu
Isotop tidak stabil
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