Nickel

Latin nameNiccolum
English nameNickel
chemical symbolNi
atomic number28
relative atomic mass58,6934
period4
groupVIII.B
classificationtransition metals
discovery year1751
discovererA. F. Cronstedt
melting point [°C]1453
boiling point [°C]2913
density [g cm-3]8,908
density at melting point [g cm-3]7,81
electronegativity [Pauling]1,91
stand. el. potential [V]-0,23
oxidation statesI, II, III, IV
electron configuration[Ar]3d8 4s2
specific heat [J g-1K-1]0,44
heat of fusion [kJ mol-1]17,47
thermal conductivity [W m-1 K-1]91
el. conductivity [S m-1]1,4.107
1. ionizing potential [eV]7,6398
2. ionizing potential [eV]18,168
3. ionizing potential [eV]35,17
Mohs hardness4
Vickers hardness [MPa]638
Brinell hardness [MPa]700
shear modulus [GPa]76
Young's modulus [GPa]200
Curie's point [K]631
state at normal conditionssolid

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