A.A.Baikov Institute of Metallurgy and Materials Science

DATABASE ON PROPERTIES OF CHEMICAL ELEMENTS
Properties of element K
PropertyValueCommentsReferences
ΔH interface M in O (Miedema)-283
 13823
ΔH interface M in S (Miedema)-237
 13823
ΔH interface O in M (Miedema)-363
 13823
ΔH interface S in M-429
 13823
γ-free electron to specific heat2,08(mJ*mol-1*K-2)  13823
Atomic concentration1,402(1023 m-3)  13823
Atomic electron scattering factor at 0.50,43 13823
Atomic environment number (Villars, Daams)14  13823
Atomic number start counting left top, left-right sequence19  13823
Atomic weight39,098(10-3 kg)  13823
Atomic weight39,0983(10-3 kg)  14358
Atomic weight39,102(10-3 kg)  17061
Boiling temperature1032
 19178
Boiling temperature1033
 19178
Boiling temperature1047
 13823
Charge nuclear effective (Clementi)3,5 13823
Chemical potential (Miedema)2,25 13823
Compression modulus0,032(GPa)  13823
Conductivity electrical15(104 Ohm-1*cm-1) 13823
Conductivity thermal102
 13823
Debye temperature91
 13823
Density862
 13823
Density890
 20518
Distance from core electron (Schubert)1,32(A) 13823
Distance from valence electron (Schubert)4,6(A) 13823
Electrochemical weight equivalent0,40514(mg*K-1)  13823
Electron affinity48,4
 13823
Electronegativity (Alfred-Rochow)0,91 13823
Electronegativity (Martynov&Batsanov)0,8 13823
Electronegativity (Pauling)0,8 13823
Electronegativity absolute2,42 13823
Energy cohesive (Brewer)0,93
 13823
Energy of ionization first418,8
 13823
Energy of ionization second3051
 13823
Energy of ionization third4411
 13823
Enthalpy of atomization89,2
 13823
Enthalpy of melting2,39
 13823
Enthalpy of surface (Miedema)23
 13823
Enthalpy of vacancies (Miedema)24
 13823
Enthalpy of vaporization76,9
 19178
Enthalpy of vaporization77,5
 19178
Enthalpy of vaporization79,1
 13823
Entropy of solid64,43485
 13823
Group number1 13823
Hardness (Brinell)0,363[MPa] 13823
Linear thermal expansion coefficient83(10-6*K-1) 13823
Magnetic frequency of nuclei4,667 13823
Magnetic resonance1,9864(MHz)  13823
Magnetic susceptibility0,0000000067(m3*kg-1) 13823
Mass attenuation coefficient CrKα417(cm2*g-1)  13823
Mass attenuation coefficient FeKα266(cm2*g-1) 13823
Mass attenuation coefficient for CuKα143(cm2*g-1)  13823
Mass attenuation coefficient for MoKα15,8(cm2*g-1)  13823
Melting temperature337
 13823
Mendeleev chemists sequence6  13823
Mendeleev d-t start left4  13823
Mendeleev d-t start right100  13823
Mendeleev H d-t start left4  13823
Mendeleev H d-t start right101  13823
Mendeleev H t-d start left3  13823
Mendeleev H t-d start right100  13823
Mendeleev Pettifor10  13823
Mendeleev Pettifor regular10  13823
Mendeleev t-d start left4  13823
Mendeleev t-d start right100  13823
Modulus of rigidity1,3(GPa) 13823
Modulus of rigidity66,7(GPa) 17061
Molar heat capacity29,58
 13823
Molar heat capacity29,6
 20518
Moment nuclear magnetic0,391(mu) 13823
Nuclear charge effective (Slater)2,2 13823
nW1/3 (Miedema)0,65(a.u.-1/3)  13823
Oxidation state first 1 13823
Periodic number start counting bottom right, right-left sequence85  13823
Periodic number start counting left bottom, left-right sequence68  13823
Periodic number start counting top right, right-left sequence36  13823
Poisson's ratio0,35 13823
Quantum number4 13823
Radii covalent203
 13823
Radii metal (Waber)2,376(A) 13823
Radii pseudo-potential (Zunger)3,69(a.u.) 13823
Resistivity electrical6,15(10-8 Ohm*m)  13823
Sound velocity2000(m*s-1) 13823
Spectral lines no87 13823
Spin nuclei1,5(h) 13823
Surface tension at Tm130
 13823
Thermal neutron capture cross section2,1(barns) 13823
V2/3 (Miedema)12,17(cm2)  13823
Valence electron number1 13823
Vapour pressure at Tm0,000106(N*m-2) 13823
Volume of atom (Villars, Daams)7,572(10-2 nm3)  13823
Work function2,2(eV)  13823
Young's modulus3,5(GPa)  13823
PropertyC.N.Radii ionic (Shannon)CommentsReferences
K +141,370 Å 13826
K +161,380 Å 13826
K +171,460 Å 13826
K +181,510 Å 13826
K +191,550 Å 13826
K +1101,590 Å 13826
K +1121,640 Å 13826
PropertyValueCommentsReferences
Radii ionic (Bokii & Belov)
K +11,330 Å 13824
Radii ionic (Goldsmidt)
K +11,330 Å 13824
Radii ionic (Pauling)
K +11,330 Å 13824
Radii ionic (Yagoda)
K +11,330 Å 13824