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Home > Lutetium


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Ytterbium - Lutetium - Hafnium
Y
Lu
Lr  
 
 
General
Name, Symbol, NumberLutetium, Lu, 71
Chemical series Transition metals
Group, Period, Block 3, 6 , dThe d-block of the periodic table of elements consists of those periodic table groups that contain elements in which, in the atomic ground state, the highest-energy electron is in a d- orbital. The d-block elements are often also known as transition metal
DensityFor other meanings of density, see density (disambiguation Density (symbol: rho Greek: rho) is a measure of mass per unit of volume. The higher an object's density, the higher its mass per volume. The average density of an object equals its total mass div, Hardness 9841 kg/m3Kilogram per cubic metre is the SI measure of density and is represented as kg/m³, where kg stands for kilogram and m³ stands for cubic metre. The density of water is about 1000 kg/m³, since a cubic metre of water weighs about a tonne. kg/m³" is sometimes, __
AppearanceFor alternative meanings, see color (disambiguation). visual arts. Color (or colour is a sensation which (in humans) derives from the ability of the fine structure of the eye to distinguish three differently filtered analyses of a view. The perception of Silvery white
Atomic properties
Atomic weightIn reference to a certain isotope of a chemical element, atomic weight (more accurately relative atomic mass though also called simply atomic mass is the mass of one atom of the isotope expressed in units atomic mass unit amu) such that the Carbon-12 isot 174.967 uTo help compare different orders of magnitude we list here masses between 60. 22 amu and 602. 2 amu (10-25 kg and 10-24 kg). See also masses of other orders of magnitude. lighter masses 91. 224 amu atomic mass of zirconium 92. 90638 amu atomic mass of nio
Atomic radiusAtomic radius is the distance from the atomic nucleus to the outmost stable electron orbital in a atom that is at equilibrium and is measured in picometers or Angstroms. Atomic radii are called covalent radii (a reference to the types of bonds formed) whe (calc.) 175 (217) pm
Covalent radius 160 pm
van der Waals radius no data
Electron configuration [ Xe]4 f14 5d1 6 s2
e- 's per energy level2, 8, 18, 32, 9, 2
Oxidation states ( Oxide) 3 (weak base)
Crystal structure hexagonal
Physical properties
State of matter solid ( __)
Melting point 1925 K (3006 °F)
Boiling point 3675 K (6156 °F)
Molar volume 17.78 ×10-6 m3/mol
Heat of vaporization 355.9 kJ/mol
Heat of fusion 18.6 kJ/mol
Vapor pressure 2460 Pa at 1936 K
Velocity of sound no data
Miscellaneous
Electronegativity 1.27 ( Pauling scale)
Specific heat capacity 150 J/(kg*K)
Electrical conductivity 1.85 106/m ohm
Thermal conductivity 16.4 W/(m*K)
1st ionization potential 523.5 kJ/mol
2nd ionization potential 1340 kJ/mol
3rd ionization potential 2022.3 kJ/mol
4th ionization potential 4370 kJ/mol
5th ionization potential 6445 kJ/mol
Most stable isotopes
iso NA half-life DM DE M eV DP
173Lu {syn.} 1.37 y ε0.671173 Yb
174Lu{syn.}3.31 yε1.374174Yb
175Lu97.41%Lutetium is stable with 104 neutrons
176Lu2.59% 3.78 E10 y β-1.193176 Hf
SI units & STP are used except where noted.

Lutetium is a chemical element in the periodic table that has the symbol Lu and atomic number 71. A metallic element of the rare earth group, lutetium usually occurs in association with yttrium and is sometimes used in metal alloys and as a catalyst in various processes.



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