Properties of Np:

Property Name Value Unit Comments Reference
ΔH interface M in O (Miedema) -1029 (kJmol-1) 13823
ΔH interface O in M (Miedema) -515 (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 5,2 (1023 m-3) 13823
Atomic electron scattering factor at 0.5 3,61 13823
Atomic environment number (Villars, Daams) 7 13823
Atomic number start counting left top, left-right sequence 93 13823
Atomic weight 237,048 (10-3 kg) 13823
Boiling temperature 4175 (K) 13823
Bulk modulus 0 (GPa) 13823
Charge nuclear effective (Clementi) 9 13823
Chemical potential (Miedema) 0 13823
Compression modulus 0,68 (GPa) 13823
Conductivity electrical 0 (104 Ohm-1cm-1) 13823
Conductivity thermal 6,3 (Jmol-1K-1) 13823
Debye temperature 187,5 (K) 13823
Density 20250 (kgm-3) 13823
Distance to core electron (Schubert) 1 (A) 13823
Distance to valence electron (Schubert) 1,63 (A) 13823
Electrochemical weight equivalent 1 (mgK-1) 13823
Electron affinity 50 (kJmol-1) 13823
Electronegativity (Alfred-Rochow) 1,22 13823
Electronegativity (Martynov&Batsanov) 1,3 13823
Electronegativity (Pauling) 1,4 13823
Electronegativity absolute 3,5 13823
Energy cohesive (Brewer) 4,2 (Jmol-1) 13823
Energy of ionization (first) 530 (kJmol-1) 13823
Energy of ionization (second) 1139 (kJmol-1) 13823
Energy of ionization (third) 1772 (kJmol-1) 13823
Enthalpy of atomization 457 (kJmol-1) 13823
Enthalpy of melting 9,46 (kJmol-1) 13823
Enthalpy of melting 3,2 (kJmol-1) 18453
Enthalpy of surface (Miedema) 0 (kJmol-1) 13823
Enthalpy of vacancies (Miedema) 0 (kJmol-1) 13823
Enthalpy of vaporization 336,6 (kJmol-1) 13823
Entropy of solid 50 (Jmol-1K-1) 13823
Entropy of solid 50,45 (Jmol-1K-1) 18453
Group number 3 13823
Hardness (Brinell) 0 [MPa] 13823
Linear thermal expansion coefficient 18 (10-6K-1) 13823
Magnetic frequency of nuclei 11,25 13823
Magnetic resonance 1 (MHz) 13823
Magnetic susceptibility 0 (m3kg-1) 13823
Mass attenuation coefficient FeKα 0 (cm2g-1) 13823
Mass attenuation coefficient for CrKα 0 (cm2g-1) 13823
Mass attenuation coefficient for CuKα 0 (cm2g-1) 13823
Mass attenuation coefficient for MoKα 120 (cm2g-1) 13823
Melting temperature 913 (K) 13823
Mendeleev chemists sequence 32 13823
Mendeleev d-t start left 24 13823
Mendeleev d-t start right 79 13823
Mendeleev H d-t start left 23 13823
Mendeleev H d-t start right 80 13823
Mendeleev H t-d start left 24 13823
Mendeleev H t-d start right 81 13823
Mendeleev Pettifor 44 13823
Mendeleev Pettifor regular 43 13823
Mendeleev t-d start left 25 13823
Mendeleev t-d start right 80 13823
Modulus of rigidity 0 (GPa) 13823
Molar heat capacity 29,62 (Jmol-1K-1) 13823
Molar heat capacity 40 (Jmol-1K-1) 18453
Molar heat capacity 36 (Jmol-1K-1) 18453
Moment nuclear magnetic 1 (mu) 13823
Nuclear charge effective (Slater) 1,8 13823
nWS^(1/3) (Miedema) 0 (a.u.-1/3) 13823
Oxidation state (first) 3 13823
Periodic number start counting bottom right, right-left sequence 11 13823
Periodic number start counting left bottom, left-right sequence 7 13823
Periodic number start counting top right, right-left sequence 97 13823
Poisson's ratio 0 13823
Quantum number 7 13823
Radii covalent 150 (pm) 13823
Radii metal (Waber) 1,555 (A) 13823
Radii pseudo-potential (Zunger) 4,93 13823
Resistivity electrical 122 (10-8 Ohmm) 13823
Sound velocity 0 (ms-1) 13823
Spectral lines no 114 13823
Spin nuclei 3 (h) 13823
Surface tension at Tm 0 (mJm-2) 13823
Thermal neutron capture cross section 180 (barns) 13823
V^(2/3) (Miedema) 0 (cm2) 13823
Valence electron number 3 13823
Vapour pressure at Tm 0 (Nm-2) 13823
Volume of atom (Villars, Daams) 1,922 (10-2 nm3) 13823
Work function 0 (eV) 13823
Young's modulus 0 (GPa) 13823

Radii Ionic properties of Np:

Property Name Charge CN Value Unit Comments Reference
Radii ionic (Bokii & Belov) 3 1,02 (Å) 13824
Radii ionic (Bokii & Belov) 4 0,88 (Å) 13824
Radii ionic (Yagoda) 3 1,04 (Å) 13824
Radii ionic (Yagoda) 4 0,91 (Å) 13824
Radii ionic (Yagoda) 5 0,82 (Å) 13824
Radii ionic (Yagoda) 6 0,76 (Å) 13824
Radii ionic (Shannon) 2 6 1,1 (Å) 13826
Radii ionic (Shannon) 3 6 1,01 (Å) 13826
Radii ionic (Shannon) 4 6 0,87 (Å) 13826
Radii ionic (Shannon) 4 8 0,98 (Å) 13826
Radii ionic (Shannon) 5 6 0,75 (Å) 13826
Radii ionic (Shannon) 6 6 0,72 (Å) 13826
Radii ionic (Shannon) 7 6 0,71 (Å) 13826
Change element