A.A.Baikov Institute of Metallurgy and Materials Science

DATABASE ON PROPERTIES OF CHEMICAL ELEMENTS
Properties of element Bk
PropertyValueCommentsReferences
Atomic electron scattering factor at 0.53,72 13823
Atomic environment number (Villars, Daams)12  13823
Atomic number start counting left top, left-right sequence97  13823
Atomic weight247(10-3 kg)  13823
Boiling temperature3000
 13823
Charge nuclear effective (Clementi)9 13823
Compression modulus0,5(GPa)  13823
Density14790
 13823
Distance from core electron (Schubert)1,04(A) 13823
Distance from valence electron (Schubert)1,69(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 first530
 13823
Energy of ionization second1213
 13823
Energy of ionization third1859
 13823
Enthalpy of atomization291
 13823
Enthalpy of melting14
 13823
Enthalpy of melting7,7
 18453
Enthalpy of vaporization360
 13823
Entropy of solid50
 13823
Entropy of solid78,2
 18453
Group number3 13823
Magnetic frequency of nuclei5 13823
Magnetic resonance1(MHz)  13823
Mass attenuation coefficient for MoKα120(cm2*g-1)  13823
Melting temperature1323
 13823
Mendeleev chemists sequence40  13823
Mendeleev d-t start left32  13823
Mendeleev d-t start right71  13823
Mendeleev H d-t start left31  13823
Mendeleev H d-t start right72  13823
Mendeleev H t-d start left32  13823
Mendeleev H t-d start right73  13823
Mendeleev Pettifor40  13823
Mendeleev Pettifor regular39  13823
Mendeleev t-d start left33  13823
Mendeleev t-d start right72  13823
Molar heat capacity30
 13823
Molar heat capacity36,9
 18453
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 sequence7  13823
Periodic number start counting left bottom, left-right sequence11  13823
Periodic number start counting top right, right-left sequence93  13823
Quantum number7 13823
Radii covalent180
 13823
Radii metal (Waber)1,81(A) 13823
Radii pseudo-potential (Zunger)5(a.u.) 13823
Spin nuclei3(h) 13823
Thermal neutron capture cross section710(barns) 13823
Valence electron number11 13823
Volume of atom (Villars, Daams)2,818(10-2 nm3)  13823
PropertyC.N.Radii ionic (Shannon)CommentsReferences
Bk+360,960 Å 13826
Bk+460,830 Å 13826
Bk+480,930 Å 13826
PropertyValueCommentsReferences
Radii ionic (Yagoda)
Bk+21,180 Å 13824
Bk+31,000 Å 13824
Bk+40,870 Å 13824