Svojstva

CAS broj7440-73-5
PubChem CIDna
Atomski radijus260
Atomski volumen71,07
Relativna atomska masa[223]
Bloks
Vrelište677
Modul stišljivosti
KategorijaAlkalijski metali
Kristalna struktura
BojaSrebrna
Kovalentni radijus348
Gustoća1,87
Električna otpornost
Elektronska konfiguracija[Rn] 7s1
Elektrona po ljusci2, 8, 18, 32, 18, 8, 1
Elektronegativnost0,7
Elektroni87
Skupina1
Toplina taljenja2
Toplina isparavanja65
Potencijal ionizacije4,073
Magnetsko redanje
Magnetska osjetljivost
Masa[223]
Maseni broj87
Talište23
NazivFrancij
Neutroni136
Atomski broj223
Stanja oksidacije1
Perioda7
Agregacijsko stanjeČvrsto
Poissonov omjer
Protoni87
Modul smicanja
Specifični toplinski kapacitet-
SimbolFr
Toplinska vodljivost0,15
Van der Waalsov radijus
Youngov modul
Obilnost
Zastupljenost u Zemljinoj korina
Zastupljenost u svemiruna
Fr Francij 87 (223) 1 7 s 87 27.0 677.0 [Rn] 7s1 2 8 18 32 18 8 1 N/A Silver Cubic: Body centered 0.7 {"1":"380"} 380 -44 1 2.7 2.1 64.0 15.0 1 21.7 m 31.7m BetaDecay Solid, AlkaliMetal, Metal, Radioactive, Natural FRAN-si-em Highly rare and unstable, radioactive metal. Since its isotopes have such short half-lives there are no commercially significant compounds of francium. Formed by decay of actinium. Chemical properties similar to cesium. Decays to radium or astatine. PyFLvSg6ZDw Francium
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. Lutecija je drevni naziv za Pariz 87 1939 Marguerite Perey France Named after "France"

Isotopes of Lutetium

Standard Atomic Weight

[223]

Stabilni izotopi

Nestabilni izotopi

199Fr 200Fr 201Fr 202Fr 203Fr 204Fr 205Fr 206Fr 207Fr 208Fr 209Fr 210Fr 211Fr 212Fr 213Fr 214Fr 215Fr 216Fr 217Fr 218Fr 219Fr 220Fr 221Fr 222Fr 223Fr 224Fr 225Fr 226Fr 227Fr 228Fr 229Fr 230Fr 231Fr 232Fr

Lutetium is considered to be non toxic
Lutetium was the last natural rare earth element to be discovered
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.