A.A.Baikov Institute of Metallurgy and Materials Science

DATABASE ON PROPERTIES OF CHEMICAL ELEMENTS
Properties of element Am
PropertyValueCommentsReferences
Atomic concentration2,96(1023 m-3)  13823
Atomic electron scattering factor at 0.53,66 13823
Atomic environment number (Villars, Daams)12  13823
Atomic number start counting left top, left-right sequence95  13823
Atomic weight243(10-3 kg)  13823
Boiling temperature2284
 20518
Boiling temperature2880
 13823
Charge nuclear effective (Clementi)9 13823
Compression modulus0,5(GPa)  13823
Density12000
 20518
Density13670
 13823
Distance from core electron (Schubert)1(A) 13823
Distance from valence electron (Schubert)1,62(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)2,73
 13823
Energy of ionization first545,6
 13823
Energy of ionization second1172
 13823
Energy of ionization third1816
 13823
Enthalpy of atomization266
 13823
Enthalpy of melting10
 13823
Enthalpy of vaporization238,5
 13823
Entropy of solid50
 13823
Entropy of solid54,4
 18453
Group number3 13823
Magnetic frequency of nuclei5,76 13823
Magnetic resonance1(MHz)  13823
Magnetic susceptibility0,00000005(m3*kg-1) 13823
Mass attenuation coefficient for MoKα120(cm2*g-1)  13823
Melting temperature1267
 13823
Melting temperature1449
 18453
Mendeleev chemists sequence36  13823
Mendeleev d-t start left28  13823
Mendeleev d-t start right75  13823
Mendeleev H d-t start left27  13823
Mendeleev H d-t start right76  13823
Mendeleev H t-d start left28  13823
Mendeleev H t-d start right77  13823
Mendeleev Pettifor42  13823
Mendeleev Pettifor regular41  13823
Mendeleev t-d start left29  13823
Mendeleev t-d start right76  13823
Molar heat capacity25,86
 13823
Molar heat capacity43
 18453
Moment nuclear magnetic1(mu) 13823
Nuclear charge effective (Slater)4,65 13823
Oxidation state first 3 13823
Periodic number start counting bottom right, right-left sequence9  13823
Periodic number start counting left bottom, left-right sequence9  13823
Periodic number start counting top right, right-left sequence95  13823
Quantum number7 13823
Radii covalent184
 13823
Radii metal (Waber)1,81(A) 13823
Radii pseudo-potential (Zunger)4,89(a.u.) 13823
Resistivity electrical68(10-8 Ohm*m)  13823
Spectral lines no170 13823
Spin nuclei3(h) 13823
Thermal neutron capture cross section74(barns) 13823
Valence electron number9 13823
Volume of atom (Villars, Daams)2,927(10-2 nm3)  13823
PropertyC.N.Radii ionic (Shannon)CommentsReferences
Am+271,210 Å13826
Am+281,260 Å13826
Am+291,310 Å13826
Am+360,975 Å13826
Am+381,090 Å13826
Am+460,850 Å13826
Am+480,950 Å13826
PropertyValueCommentsReferences
Radii ionic (Bokii & Belov)
Am+31,000 Å 13824
Am+40,850 Å 13824
Radii ionic (Yagoda)
Am+31,020 Å 13824
Am+40,890 Å 13824
Am+60,710 Å 13824