A.A.Baikov Institute of Metallurgy and Materials Science

DATABASE ON PROPERTIES OF CHEMICAL ELEMENTS
Properties of element La
PropertyValueCommentsReferences
ΔH interface M in O (Miedema)-897
 13823
ΔH interface M in S (Miedema)-625
 13823
ΔH interface O in M (Miedema)-598
 13823
ΔH interface S in M-460
 13823
γ-free electron to specific heat10(mJ*mol-1*K-2)  13823
Atomic concentration2,7(1023 m-3)  13823
Atomic electron scattering factor at 0.52,48 13823
Atomic environment number (Villars, Daams)12  13823
Atomic number start counting left top, left-right sequence57  13823
Atomic weight138,906(10-3 kg)  13823
Boiling temperature3694
 5391
Boiling temperature3730
 13823
Boiling temperature3733
 19178
Boiling temperature3737
 19178
Boiling temperature3743
 19178
Charge nuclear effective (Clementi)9,31 13823
Chemical potential (Miedema)3,17 13823
Compression modulus0,243(GPa)  13823
Conductivity electrical1,77(104 Ohm-1*cm-1) 13823
Conductivity thermal13,5
 13823
Debye temperature142
 13823
Density5970
bcc, 1160 K20518
Density6145
 13823
Density6146
double-c hexagonal close-packed, 297 K20518
Density6187
fcc, 598 K20518
Distance from core electron (Schubert)1,34(A) 13823
Distance from valence electron (Schubert)2,42(A) 13823
Electrochemical weight equivalent0,47986(mg*K-1)  13823
Electron affinity50
 13823
Electronegativity (Alfred-Rochow)1,08 13823
Electronegativity (Martynov&Batsanov)1,35 13823
Electronegativity (Pauling)1 13823
Electronegativity absolute3,1 13823
Energy cohesive (Brewer)4,47
 13823
Energy of ionization first538,1
 13823
Energy of ionization second1067
 13823
Energy of ionization third1851
 13823
Enthalpy of atomization430
 5391
Enthalpy of atomization431
 13823
Enthalpy of melting10
 13823
Enthalpy of melting6,14
 18453
Enthalpy of surface (Miedema)115
 13823
Enthalpy of vacancies (Miedema)120
 13823
Enthalpy of vaporization400
 19178
Enthalpy of vaporization402
 19178
Enthalpy of vaporization402,1
 13823
Entropy of solid56,8
 18453
Entropy of solid56,94048
 13823
Entropy of solid57,05
 5391
Group number3 13823
Hardness (Brinell)363[MPa] 13823
Linear thermal expansion coefficient12,1(10-6*K-1) 20518
Linear thermal expansion coefficient5,3(10-6*K-1) 13823
Magnetic frequency of nuclei14,126 13823
Magnetic resonance6,014(MHz)  13823
Magnetic susceptibility0,000000011(m3*kg-1) 13823
Mass attenuation coefficient CrKα202(cm2*g-1)  13823
Mass attenuation coefficient FeKα557(cm2*g-1) 13823
Mass attenuation coefficient for CuKα341(cm2*g-1)  13823
Mass attenuation coefficient for MoKα45,8(cm2*g-1)  13823
Melting temperature1191
 5391
Melting temperature1192
 18453
Melting temperature1193
 13823
Mendeleev chemists sequence23  13823
Mendeleev d-t start left15  13823
Mendeleev d-t start right88  13823
Mendeleev H d-t start left14  13823
Mendeleev H d-t start right89  13823
Mendeleev H t-d start left15  13823
Mendeleev H t-d start right90  13823
Mendeleev Pettifor33  13823
Mendeleev Pettifor regular34  13823
Mendeleev t-d start left16  13823
Mendeleev t-d start right89  13823
Modulus of rigidity14,9(GPa) 13823
Molar heat capacity27,11
 13823
Molar heat capacity39,54
 18453
Moment nuclear magnetic2,761(mu) 13823
Nuclear charge effective (Slater)2,85 13823
nW1/3 (Miedema)1,18(a.u.-1/3)  13823
Oxidation state first 3 13823
Periodic number start counting bottom right, right-left sequence47  13823
Periodic number start counting left bottom, left-right sequence20  13823
Periodic number start counting top right, right-left sequence84  13823
Poisson's ratio0,28 13823
Quantum number6 13823
Radii covalent169
 13823
Radii metal (Waber)1,877(A) 13823
Radii pseudo-potential (Zunger)3,08(a.u.) 13823
Resistivity electrical57(10-8 Ohm*m)  13823
Sound velocity2480(m*s-1) 13823
Spectral lines no293 13823
Spin nuclei3,5(h) 13823
Surface tension at Tm1020
 13823
Thermal neutron capture cross section8,98(barns) 13823
V2/3 (Miedema)7,98(cm2)  13823
Valence electron number3 13823
Vapour pressure at Tm0,000000133(N*m-2) 13823
Volume of atom (Villars, Daams)3,741(10-2 nm3)  13823
Work function3,5(eV)  13823
Young's modulus37,9(GPa)  13823
PropertyC.N.Radii ionic (Shannon)CommentsReferences
La+361,032 Å13826
La+371,100 Å13826
La+381,160 Å13826
La+391,216 Å13826
La+3101,270 Å13826
La+3111,360 Å13826
PropertyValueCommentsReferences
Radii ionic (Bokii & Belov)
La+31,040 Å 13824
La+40,900 Å 13824
Radii ionic (Goldsmidt)
La+31,220 Å 13824
Radii ionic (Pauling)
La+31,150 Å 13824
Radii ionic (Yagoda)
La+31,060 Å 13824