A.A.Baikov Institute of Metallurgy and Materials Science

DATABASE ON PROPERTIES OF CHEMICAL ELEMENTS
Properties of element Fm
PropertyValueCommentsReferences
Atomic electron scattering factor at 0.53,81 13823
Atomic environment number (Villars, Daams)12  13823
Atomic number start counting left top, left-right sequence100  13823
Atomic weight257(10-3 kg)  13823
Atomic weight257,0951(10-3 kg)  14358
Boiling temperature3800
 13823
Charge nuclear effective (Clementi)9 13823
Compression modulus0,5(GPa)  13823
Density7000
 13823
Distance from core electron (Schubert)1,02(A) 13823
Distance from valence electron (Schubert)1,7(A) 13823
Electrochemical weight equivalent1(mg*K-1)  13823
Electron affinity50
 13823
Electronegativity (Alfred-Rochow)1,2 13823
Electronegativity (Martynov&Batsanov)1,3 13823
Electronegativity (Pauling)1,2 13823
Electronegativity absolute3,5 13823
Energy cohesive (Brewer)3,9
 13823
Energy of ionization first535,6
 13823
Energy of ionization second1171
 13823
Energy of ionization third2350
 13823
Enthalpy of atomization141
 13823
Enthalpy of melting14
 13823
Enthalpy of melting9,3
 18453
Enthalpy of vaporization360
 13823
Entropy of solid50
 13823
Entropy of solid87,2
 18453
Group number3 13823
Magnetic frequency of nuclei5 13823
Magnetic resonance1(MHz)  13823
Mass attenuation coefficient for MoKα120(cm2*g-1)  13823
Melting temperature1125
 18453
Melting temperature1800
 13823
Mendeleev chemists sequence46  13823
Mendeleev d-t start left38  13823
Mendeleev d-t start right65  13823
Mendeleev H d-t start left37  13823
Mendeleev H d-t start right66  13823
Mendeleev H t-d start left38  13823
Mendeleev H t-d start right67  13823
Mendeleev Pettifor37  13823
Mendeleev Pettifor regular36  13823
Mendeleev t-d start left39  13823
Mendeleev t-d start right66  13823
Molar heat capacity30
 13823
Moment nuclear magnetic1(mu) 13823
Nuclear charge effective (Slater)1,65 13823
Oxidation state first 3 13823
Periodic number start counting bottom right, right-left sequence4  13823
Periodic number start counting left bottom, left-right sequence14  13823
Periodic number start counting top right, right-left sequence90  13823
Quantum number7 13823
Radii covalent180
 13823
Radii metal (Waber)1,81(A) 13823
Radii pseudo-potential (Zunger)5,06(a.u.) 13823
Spin nuclei3(h) 13823
Thermal neutron capture cross section5800(barns) 13823
Valence electron number3 13823
Volume of atom (Villars, Daams)2,8(10-2 nm3)  13823
PropertyValueCommentsReferences
Radii ionic (Yagoda)
Fm+21,150 Å 13824
Fm+30,970 Å 13824
Fm+40,840 Å 13824