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Lutetium

71
Lu
174.96
Lutetium
 General | States | Energies | Oxidation & Electrons | Appearance & Characteristics | Reactions | Other Forms Radius | Conductivity | Abundance

General:

Name: Lutetium Symbol: Lu
Group: Rare Earth, Lanthanides Atomic weight: 174.96
Density @ 293 K: 9.85 g/cm3 Atomic volume: 17.78 cm3/mol
Group: Rare Earth, Lanthanides discovered: 1907

States:

state (s, l, g): s
melting point: 1929.2 K boiling point: 3600 K
Heat of fusion: 18.60 kJ/mol Heat of vaporization: 355.90 kJ/mol

Energies:

1st ionization energy: 523.6 kJ/mole
electronegativity: 1.27 2nd ionization energy: 1340 kJ/mole
electron affinity: 50 kJ/mole 3rd ionization energy: 2022 kJ/mole
Specific heat: 0.15 J/gK heat atomization: kJ/mole atoms

Oxidation & Electrons:

Shells: 2,8,18,32,9,2 electron configuration: [Xe] 4f14 5d1 6s2
minimum oxidation number: 0 maximum oxidation number: 3
min. common oxidation no.: 0 max. common oxidation no.: 3

Appearance & Characteristics:

structure: hcp: hexagonal close pkd color: silvery-white
uses: alloys toxicity:
hardness: mohs characteristics:

Reactions:

reaction with air: vigorous, =>Lu2O3
reaction with 6M HCl: mild, =>H2, LuCl3 reaction with 6M HCl: mild, =>H2, LuCl3
reaction with 15M HNO3: mild, =>Lu(NO3)3 reaction with 6M NaOH:

Other Forms:

number of isotopes: 2 hydride(s): LuH2 LuH3
oxide(s): Lu2O3 chloride(s): LuCl3

Radius:

ionic radius (2- ion): pm ionic radius (1- ion): pm
atomic radius: 174 pm ionic radius (1+ ion): pm
ionic radius (2+ ion): pm ionic radius (3+ ion): 100.1 pm

Conductivity:

thermal conductivity: 16.4 J/m-sec-deg
electrical conductivity: 16.7 1/mohm-cm polarizability: 21.9 A^3

Abundance:

source: Monazite(phosphate),bastnaesite
rel. abund. solar system: -1.435 log abundance earth's crust: -0.3 log
cost, pure: 6900 $/100g cost, bulk: $/100g