A.A.Baikov Institute of Metallurgy and Materials Science

DATABASE ON PROPERTIES OF CHEMICAL ELEMENTS
Properties of element Cm
PropertyValueCommentsReferences
Atomic electron scattering factor at 0.53,69 13823
Atomic environment number (Villars, Daams)12  13823
Atomic number start counting left top, left-right sequence96  13823
Atomic weight247(10-3 kg)  13823
Boiling temperature1440
 13823
Boiling temperature3373
 20518
Charge nuclear effective (Clementi)9 13823
Compression modulus0,5(GPa)  13823
Density13300
 13823
Density13510
 20518
Distance from core electron (Schubert)0,96(A) 13823
Distance from valence electron (Schubert)1,9(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)3,86
 13823
Energy of ionization first546,8
 13823
Energy of ionization second1193
 13823
Energy of ionization third1829
 13823
Enthalpy of atomization382
 13823
Enthalpy of melting11,7
 18453
Enthalpy of melting14,6
 13823
Enthalpy of vaporization359,7
 13823
Entropy of solid50
 13823
Entropy of solid70,8
 18453
Group number3 13823
Magnetic frequency of nuclei0,75 13823
Magnetic resonance1(MHz)  13823
Mass attenuation coefficient for MoKα120(cm2*g-1)  13823
Melting temperature1619
 18453
Melting temperature600
 13823
Mendeleev chemists sequence38  13823
Mendeleev d-t start left30  13823
Mendeleev d-t start right73  13823
Mendeleev H d-t start left29  13823
Mendeleev H d-t start right74  13823
Mendeleev H t-d start left30  13823
Mendeleev H t-d start right75  13823
Mendeleev Pettifor41  13823
Mendeleev Pettifor regular40  13823
Mendeleev t-d start left31  13823
Mendeleev t-d start right74  13823
Molar heat capacity27,7
 13823
Molar heat capacity28,2
 18453
Moment nuclear magnetic1(mu) 13823
Nuclear charge effective (Slater)1,8 13823
Oxidation state first 3 13823
Periodic number start counting bottom right, right-left sequence8  13823
Periodic number start counting left bottom, left-right sequence10  13823
Periodic number start counting top right, right-left sequence94  13823
Quantum number7 13823
Radii covalent180
 13823
Radii metal (Waber)1,81(A) 13823
Radii pseudo-potential (Zunger)4,87(a.u.) 13823
Spin nuclei3(h) 13823
Thermal neutron capture cross section60(barns) 13823
Valence electron number10 13823
Volume of atom (Villars, Daams)2,998(10-2 nm3)  13823
PropertyC.N.Radii ionic (Shannon)CommentsReferences
Cm+360,970 Å 13826
Cm+460,850 Å 13826
Cm+480,950 Å 13826
PropertyValueCommentsReferences
Radii ionic (Yagoda)
Cm+21,190 Å 13824
Cm+31,010 Å 13824
Cm+40,880 Å 13824