Properties of Er:

Property Name Value Unit Comments Reference
ΔH interface M in O (Miedema) -949 (kJmol-1) 13823
ΔH interface O in M (Miedema) -633 (kJmol-1) 13823
ΔH interface S in M 0 (kJmol-1) 13823
Δinterface M in S (Miedema) 0 (kJmol-1) 13823
γ-free electron to specific heat 0 (mJmol-1K-2) 13823
Atomic concentration 3,26 (1023 m-3) 13823
Atomic electron scattering factor at 0.5 2,84 13823
Atomic environment number (Villars, Daams) 12 13823
Atomic number start counting left top, left-right sequence 68 13823
Atomic weight 167,26 (10-3 kg) 13823
Boiling temperature 3136 (K) 13823
Boiling temperature 3173 (K) 19178
Boiling temperature 3133 (K) 19178
Boiling temperature 3141 (K) 19178
Boiling temperature 3074 (K) 5391
Bulk modulus 44,4 (GPa) 13823
Charge nuclear effective (Clementi) 8,48 13823
Chemical potential (Miedema) 3,22 13823
Compression modulus 0,411 (GPa) 13823
Conductivity electrical 1,18 (104 Ohm-1cm-1) 13823
Conductivity thermal 14,3 (Jmol-1K-1) 13823
Debye temperature 176,9 (K) 20518
Debye temperature 188 (K) 20518
Density 9066 (kgm-3) hcp, 297 K 13823
Distance to core electron (Schubert) 1,02 (A) 13823
Distance to valence electron (Schubert) 2,15 (A) 13823
Electrochemical weight equivalent 0,57907 (mgK-1) 13823
Electron affinity 50 (kJmol-1) 13823
Electronegativity (Alfred-Rochow) 1,11 13823
Electronegativity (Martynov&Batsanov) 1,2 13823
Electronegativity (Pauling) 1,1 13823
Electronegativity absolute 3,3 13823
Energy cohesive (Brewer) 3,29 (Jmol-1) 13823
Energy of ionization (first) 588,6 (kJmol-1) 13823
Energy of ionization (second) 1151 (kJmol-1) 13823
Energy of ionization (third) 2207 (kJmol-1) 13823
Enthalpy of atomization 317,1 (kJmol-1) 13823
Enthalpy of atomization 311 (kJmol-1) 5391
Enthalpy of melting 20,2 (kJmol-1) 18453
Enthalpy of melting 17,2 (kJmol-1) 13823
Enthalpy of surface (Miedema) 115 (kJmol-1) 13823
Enthalpy of vacancies (Miedema) 120 (kJmol-1) 13823
Enthalpy of vaporization 293 (kJmol-1) 19178
Enthalpy of vaporization 280 (kJmol-1) 13823
Entropy of solid 73,18526 (Jmol-1K-1) 13823
Entropy of solid 74,52 (Jmol-1K-1) 18453
Entropy of solid 75,86 (Jmol-1K-1) 5391
Group number 3 13823
Hardness (Brinell) 1070 [MPa] 13823
Linear thermal expansion coefficient 9,4 (10-6K-1) 13823
Linear thermal expansion coefficient 12,2 (10-6K-1) 20518
Magnetic frequency of nuclei 2,89 13823
Magnetic resonance 1,22 (MHz) 13823
Magnetic susceptibility 0,00000333 (m3kg-1) 13823
Mass attenuation coefficient FeKα 245 (cm2g-1) 13823
Mass attenuation coefficient for CrKα 373 (cm2g-1) 13823
Mass attenuation coefficient for CuKα 134 (cm2g-1) 13823
Mass attenuation coefficient for MoKα 77,3 (cm2g-1) 13823
Melting temperature 1795 (K) 18453
Melting temperature 1802 (K) 5391
Melting temperature 1795 (K) 13823
Mendeleev chemists sequence 47 13823
Mendeleev d-t start left 39 13823
Mendeleev d-t start right 66 13823
Mendeleev H d-t start left 38 13823
Mendeleev H d-t start right 67 13823
Mendeleev H t-d start left 37 13823
Mendeleev H t-d start right 66 13823
Mendeleev Pettifor 22 13823
Mendeleev Pettifor regular 23 13823
Mendeleev t-d start left 38 13823
Mendeleev t-d start right 65 13823
Modulus of rigidity 28,3 (GPa) 13823
Molar heat capacity 28,12 (Jmol-1K-1) 13823
Molar heat capacity 26,58 (Jmol-1K-1) 5391
Moment nuclear magnetic 0,48 (mu) 13823
Nuclear charge effective (Slater) 2,85 13823
nWS^(1/3) (Miedema) 1,23 (a.u.-1/3) 13823
Oxidation state (first) 3 13823
Periodic number start counting bottom right, right-left sequence 36 13823
Periodic number start counting left bottom, left-right sequence 31 13823
Periodic number start counting top right, right-left sequence 73 13823
Poisson's ratio 0,237 13823
Quantum number 6 13823
Radii covalent 157 (pm) 13823
Radii metal (Waber) 1,757 (A) 13823
Radii pseudo-potential (Zunger) 3,63 13823
Resistivity electrical 87 (10-8 Ohmm) 13823
Sound velocity 2830 (ms-1) 13823
Spectral lines no 79 13823
Spin nuclei 3,5 (h) 13823
Surface tension at Tm 1170 (mJm-2) 13823
Thermal neutron capture cross section 160 (barns) 13823
V^(2/3) (Miedema) 6,98 (cm2) 13823
Valence electron number 3 13823
Vapour pressure at Tm 0 (Nm-2) 13823
Volume of atom (Villars, Daams) 3,064 (10-2 nm3) 13823
Work function 3,1 (eV) 13823
Young's modulus 69,9 (GPa) 13823

Radii Ionic properties of Er:

Property Name Charge CN Value Unit Comments Reference
Radii ionic (Bokii & Belov) 3 0,85 (Å) 13824
Radii ionic (Goldsmidt) 3 1,04 (Å) 13824
Radii ionic (Yagoda) 3 0,96 (Å) 13824
Radii ionic (Shannon) 3 6 0,89 (Å) 13826
Radii ionic (Shannon) 3 7 0,945 (Å) 13826
Radii ionic (Shannon) 3 8 1,004 (Å) 13826
Radii ionic (Shannon) 3 9 1,062 (Å) 13826