A.A.Baikov Institute of Metallurgy and Materials Science

DATABASE ON PROPERTIES OF CHEMICAL ELEMENTS
Properties of element Sm
PropertyValueCommentsReferences
ΔH interface M in O (Miedema)-906
 13823
ΔH interface O in M (Miedema)-611
 13823
Atomic concentration3,03(1023 m-3)  13823
Atomic electron scattering factor at 0.52,65 13823
Atomic environment number (Villars, Daams)12  13823
Atomic number start counting left top, left-right sequence62  13823
Atomic weight150,36(10-3 kg)  13823
Boiling temperature2053
 5391
Boiling temperature2063
 19178
Boiling temperature2064
 13823
Boiling temperature2067
 19178
Boiling temperature2173
 19178
Bulk modulus37,8(GPa)  13823
Charge nuclear effective (Clementi)8,01 13823
Chemical potential (Miedema)3,2 13823
Compression modulus0,294(GPa)  13823
Conductivity electrical0,99(104 Ohm-1*cm-1) 13823
Conductivity thermal13,3
 13823
Debye temperature169
 20518
Density7250
bcc, 1195 K20518
Density7353
hcp, 723 K20518
Density7520
rhombohedral, 297 K13823
Distance from core electron (Schubert)1,11(A) 13823
Distance from valence electron (Schubert)2,33(A) 13823
Electrochemical weight equivalent0,51962(mg*K-1)  13823
Electron affinity50
 13823
Electronegativity (Alfred-Rochow)1,07 13823
Electronegativity (Martynov&Batsanov)1,2 13823
Electronegativity (Pauling)1,05 13823
Electronegativity absolute3,1 13823
Energy cohesive (Brewer)2,14
 13823
Energy of ionization first543,2
 13823
Energy of ionization second1068
 13823
Energy of ionization third2285
 13823
Enthalpy of atomization206,7
 13823
Enthalpy of atomization208
 5391
Enthalpy of melting10,9
 13823
Enthalpy of melting9,1
 18453
Enthalpy of melting9,576
 5391
Enthalpy of surface (Miedema)114
 13823
Enthalpy of vacancies (Miedema)120
 13823
Enthalpy of vaporization164,8
 13823
Enthalpy of vaporization165
 19178
Enthalpy of vaporization192
 19178
Entropy of solid68,1611
 13823
Entropy of solid69,6
 18453
Entropy of solid69,64
 5391
Group number3 13823
Hardness (Brinell)441[MPa] 13823
Linear thermal expansion coefficient12,7(10-6*K-1) 20518
Magnetic frequency of nuclei4,128 13823
Magnetic resonance1,72(MHz)  13823
Magnetic susceptibility0,000000152(m3*kg-1) 13823
Mass attenuation coefficient CrKα284(cm2*g-1)  13823
Mass attenuation coefficient FeKα182(cm2*g-1) 13823
Mass attenuation coefficient for CuKα397(cm2*g-1)  13823
Mass attenuation coefficient for MoKα58,6(cm2*g-1)  13823
Melting temperature1345
 13823
Melting temperature1346
 18453
Melting temperature1347
 5391
Mendeleev chemists sequence35  13823
Mendeleev d-t start left27  13823
Mendeleev d-t start right78  13823
Mendeleev H d-t start left26  13823
Mendeleev H d-t start right79  13823
Mendeleev H t-d start left25  13823
Mendeleev H t-d start right78  13823
Mendeleev Pettifor28  13823
Mendeleev Pettifor regular29  13823
Mendeleev t-d start left26  13823
Mendeleev t-d start right77  13823
Modulus of rigidity19,5(GPa) 13823
Molar heat capacity29,53
 5391
Molar heat capacity29,54
 13823
Molar heat capacity45,86
 18453
Molar heat capacity47,9
 18453
Moment nuclear magnetic-0,68(mu) 13823
Nuclear charge effective (Slater)2,85 13823
nW1/3 (Miedema)1,21(a.u.-1/3)  13823
Oxidation state first 3 13823
Periodic number start counting bottom right, right-left sequence42  13823
Periodic number start counting left bottom, left-right sequence25  13823
Periodic number start counting top right, right-left sequence79  13823
Poisson's ratio0,274 13823
Quantum number6 13823
Radii covalent166
 13823
Radii metal (Waber)1,802(A) 13823
Radii pseudo-potential (Zunger)4,14(a.u.) 13823
Resistivity electrical88(10-8 Ohm*m)  13823
Sound velocity2130(m*s-1) 13823
Spectral lines no503 13823
Spin nuclei3,5(h) 13823
Surface tension at Tm1050
 13823
Thermal neutron capture cross section5900(barns) 13823
V2/3 (Miedema)7,37(cm2)  13823
Valence electron number8 13823
Vapour pressure at Tm563(N*m-2) 13823
Volume of atom (Villars, Daams)3,318(10-2 nm3)  13823
Work function2,7(eV)  13823
Young's modulus49,7(GPa)  13823
PropertyC.N.Radii ionic (Shannon)CommentsReferences
Sm+271,220 Å 13826
Sm+281,270 Å 13826
Sm+291,320 Å 13826
Sm+360,958 Å 13826
Sm+371,020 Å 13826
Sm+381,079 Å 13826
Sm+391,132 Å 13826
Sm+3121,240 Å 13826
Sm+460,680 Å  
Sm+580,740 Å  
PropertyValueCommentsReferences
Radii ionic (Bokii & Belov)
Sm+30,970 Å 13824
Radii ionic (Goldsmidt)
Sm+31,130 Å 13824
Radii ionic (Yagoda)
Sm+31,010 Å 13824