Properties of Ge:

Property Name Value Unit Comments Reference
ΔH interface M in O (Miedema) -580 (kJmol-1) 13823
ΔH interface O in M (Miedema) -290 (kJmol-1) 13823
ΔH interface S in M -78 (kJmol-1) 13823
Δinterface M in S (Miedema) -156 (kJmol-1) 13823
γ-free electron to specific heat 0 (mJmol-1K-2) 13823
Atomic concentration 4,42 (1023 m-3) 13823
Atomic electron scattering factor at 0.5 1,57 13823
Atomic environment number (Villars, Daams) 4 13823
Atomic number start counting left top, left-right sequence 32 13823
Atomic weight 72,61 (10-3 kg) 13823
Atomic weight 72,64 (10-3 kg) 14358
Boiling temperature 3373 (K) 17058
Boiling temperature 3106 (K) 19178
Boiling temperature 3103 (K) 13823
Bulk modulus 0 (GPa) 13823
Charge nuclear effective (Clementi) 6,78 13823
Chemical potential (Miedema) 4,55 13823
Compression modulus 0,772 (GPa) 13823
Conductivity electrical 1,54 (104 Ohm-1cm-1) 13823
Conductivity thermal 59,9 (Jmol-1K-1) 13823
Debye temperature 374 (K) 13823
Density 5323 (kgm-3) 13823
Distance to core electron (Schubert) 1,22 (A) 13823
Distance to valence electron (Schubert) 1,99 (A) 13823
Electrochemical weight equivalent 0,18808 (mgK-1) 13823
Electron affinity 116 (kJmol-1) 13823
Electronegativity (Alfred-Rochow) 2,02 13823
Electronegativity (Martynov&Batsanov) 1,99 13823
Electronegativity (Pauling) 1,8 13823
Electronegativity absolute 4,6 13823
Energy cohesive (Brewer) 3,85 (Jmol-1) 13823
Energy of ionization (first) 762,1 (kJmol-1) 13823
Energy of ionization (second) 1537 (kJmol-1) 13823
Energy of ionization (third) 3302 (kJmol-1) 13823
Enthalpy of atomization 376,6 (kJmol-1) 13823
Enthalpy of melting 36,8 (kJmol-1) 13823
Enthalpy of surface (Miedema) 65 (kJmol-1) 13823
Enthalpy of vacancies (Miedema) 55 (kJmol-1) 13823
Enthalpy of vaporization 327,6 (kJmol-1) 13823
Enthalpy of vaporization 330 (kJmol-1) 19178
Enthalpy of vaporization 334 (kJmol-1) 19178
Entropy of solid 31,10792 (Jmol-1K-1) 13823
Group number 4 13823
Hardness (Brinell) 0 [MPa] 13823
Linear thermal expansion coefficient 5,8 (10-6K-1) 13823
Linear thermal expansion coefficient 5,5 (10-6K-1) 17058
Magnetic frequency of nuclei 3,488 13823
Magnetic resonance 1,485 (MHz) 13823
Magnetic susceptibility 0,00000000133 (m3kg-1) 13823
Mass attenuation coefficient FeKα 146 (cm2g-1) 13823
Mass attenuation coefficient for CrKα 235 (cm2g-1) 13823
Mass attenuation coefficient for CuKα 75,6 (cm2g-1) 13823
Mass attenuation coefficient for MoKα 64,8 (cm2g-1) 13823
Melting temperature 1211 (K) 13823
Mendeleev chemists sequence 80 13823
Mendeleev d-t start left 80 13823
Mendeleev d-t start right 24 13823
Mendeleev H d-t start left 79 13823
Mendeleev H d-t start right 25 13823
Mendeleev H t-d start left 79 13823
Mendeleev H t-d start right 25 13823
Mendeleev Pettifor 84 13823
Mendeleev Pettifor regular 83 13823
Mendeleev t-d start left 80 13823
Mendeleev t-d start right 24 13823
Modulus of rigidity 29,6 (GPa) 13823
Modulus of rigidity 67,08 (GPa) 17058
Molar heat capacity 23,347 (Jmol-1K-1) 13823
Molar heat capacity 23,222 (Jmol-1K-1) 20518
Moment nuclear magnetic 0,877 (mu) 13823
Nuclear charge effective (Slater) 5,65 13823
nWS^(1/3) (Miedema) 1,37 (a.u.-1/3) 13823
Oxidation state (first) 2 13823
Periodic number start counting bottom right, right-left sequence 72 13823
Periodic number start counting left bottom, left-right sequence 81 13823
Periodic number start counting top right, right-left sequence 23 13823
Poisson's ratio 0,32 13823
Quantum number 4 13823
Radii covalent 122 (pm) 13823
Radii metal (Waber) 1,369 (A) 13823
Radii pseudo-potential (Zunger) 1,56 13823
Resistivity electrical 460000 (10-8 Ohmm) 13823
Sound velocity 5400 (ms-1) 13823
Spectral lines no 62 13823
Spin nuclei 4,5 (h) 13823
Surface tension at Tm 1000 (mJm-2) 13823
Thermal neutron capture cross section 2,2 (barns) 13823
V^(2/3) (Miedema) 4,6 (cm2) 13823
Valence electron number 4 13823
Vapour pressure at Tm 0,0000746 (Nm-2) 13823
Volume of atom (Villars, Daams) 2,264 (10-2 nm3) 13823
Work function 4,8 (eV) 13823
Young's modulus 102,73 (GPa) 17058
Young's modulus 79,9 (GPa) 13823

Radii Ionic properties of Ge:

Property Name Charge CN Value Unit Comments Reference
Radii ionic (Bokii & Belov) 2 0,65 (Å) 13824
Radii ionic (Bokii & Belov) 4 0,44 (Å) 13824
Radii ionic (Goldsmidt) 4 0,44 (Å) 13824
Radii ionic (Pauling) 4 0,53 (Å) 13824
Radii ionic (Pauling) -4 2,72 (Å) 13824
Radii ionic (Yagoda) 2 0,7 (Å) 13824
Radii ionic (Yagoda) 4 0,53 (Å) 13824
Radii ionic (Shannon) 2 6 0,73 (Å) 13826
Radii ionic (Shannon) 4 4 0,39 (Å) 13826
Radii ionic (Shannon) 4 6 0,53 (Å) 13826