A.A.Baikov Institute of Metallurgy and Materials Science

DATABASE ON PROPERTIES OF CHEMICAL ELEMENTS
Properties of element Pm
PropertyValueCommentsReferences
Atomic electron scattering factor at 0.52,61 13823
Atomic environment number (Villars, Daams)12  13823
Atomic number start counting left top, left-right sequence61  13823
Atomic weight145(10-3 kg)  13823
Boiling temperature3000
 13823
Boiling temperature3156
 5391
Boiling temperature3273
 20518
Bulk modulus33(GPa)  13823
Charge nuclear effective (Clementi)9,4 13823
Chemical potential (Miedema)3,19 13823
Compression modulus0,35(GPa)  13823
Conductivity electrical1(104 Ohm-1*cm-1) 13823
Conductivity thermal17,9
 13823
Debye temperature159
estimation20518
Density6990
bcc, 1163 K20518
Density7220
 13823
Density7264
double-c hexagonal close-packed, 297 K20518
Distance from core electron (Schubert)1,13(A) 13823
Distance from valence electron (Schubert)2,35(A) 13823
Electrochemical weight equivalent0,50432(mg*K-1)  13823
Electron affinity50
 13823
Electronegativity (Alfred-Rochow)1,07 13823
Electronegativity (Martynov&Batsanov)1,15 13823
Electronegativity (Pauling)1,05 13823
Electronegativity absolute3 13823
Energy cohesive (Brewer)3
 13823
Energy of ionization first535,5
 13823
Energy of ionization second1052
 13823
Energy of ionization third2140
 13823
Enthalpy of atomization300
 13823
Enthalpy of atomization315
 5391
Enthalpy of melting12,6
 13823
Enthalpy of surface (Miedema)115
 13823
Enthalpy of vacancies (Miedema)120
 13823
Enthalpy of vaporization250
 13823
Entropy of solid71
 18453
Entropy of solid72,05483
 13823
Group number3 13823
Linear thermal expansion coefficient11(10-6*K-1)estimation20518
Magnetic frequency of nuclei13,51 13823
Magnetic resonance2(MHz)  13823
Mass attenuation coefficient CrKα268(cm2*g-1)  13823
Mass attenuation coefficient FeKα172(cm2*g-1) 13823
Mass attenuation coefficient for CuKα386(cm2*g-1)  13823
Mass attenuation coefficient for MoKα55,9(cm2*g-1)  13823
Melting temperature1253
 18453
Melting temperature1315
 20518
Melting temperature1441
 13823
Mendeleev chemists sequence33  13823
Mendeleev d-t start left25  13823
Mendeleev d-t start right80  13823
Mendeleev H d-t start left24  13823
Mendeleev H d-t start right81  13823
Mendeleev H t-d start left23  13823
Mendeleev H t-d start right80  13823
Mendeleev Pettifor29  13823
Mendeleev Pettifor regular30  13823
Mendeleev t-d start left24  13823
Mendeleev t-d start right79  13823
Modulus of rigidity18(GPa) 13823
Molar heat capacity26,81
 13823
Molar heat capacity27,5
 5391
Moment nuclear magnetic1(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 sequence43  13823
Periodic number start counting left bottom, left-right sequence24  13823
Periodic number start counting top right, right-left sequence80  13823
Poisson's ratio0,28 13823
Quantum number6 13823
Radii covalent165
 13823
Radii metal (Waber)1,81(A) 13823
Radii pseudo-potential (Zunger)3,99(a.u.) 13823
Resistivity electrical50(10-8 Ohm*m)  13823
Spectral lines no58 13823
Spin nuclei3,5(h) 13823
Surface tension at Tm1100
 13823
Thermal neutron capture cross section8000(barns) 13823
V2/3 (Miedema)7,43(cm2)  13823
Valence electron number7 13823
Volume of atom (Villars, Daams)3,36(10-2 nm3)  13823
Work function3,1(eV)  13823
Young's modulus46(GPa)  13823
PropertyC.N.Radii ionic (Shannon)CommentsReferences
Pm+360,970 Å 13826
Pm+381,093 Å 13826
Pm+391,144 Å 13826
PropertyValueCommentsReferences
Radii ionic (Bokii & Belov)
Pm+30,980 Å 13824
Radii ionic (Yagoda)
Pm+31,020 Å 13824