Periodic Table ![[Picture]](028_g.jpg) | Nickel | Symbol | Ni | | Atomic Number | 28 | Relative Atomic Mass 12C = 12.0000 | 58.6934
± 0.04 [IUPAC 2007] | | Atomic Radius pm | 125 | First Ionisation Energy kJ mol -1 | 736.7 | | Ionisation Energy (eV) | 7.6398 | | Electronegativity | 1.91 | Density kg m -3 | 8902 [298 K] 7780 [l., m.p.] | | Molar Volume cm 3 | 6.59 | Thermal Conductivity W m -1 K -1 | 90.7 [300 K] | | Melting Point K | 1726 | | Boiling Point K | 3005 | | Number of Isotopes | 14 | | Isotope Atomic mass/u Mole fraction | 58Ni 57.935 3477(16) 0.680 769(89) 60Ni 59.930 7903(15) 0.262 231(77) 61Ni 60.931 0601(15) 0.011 399(6) 62Ni 61.928 3484(15) 0.036 345(17) 64Ni 63.927 9692(16) 0.009 256(9)
| | Inner + outer Shells | | | Inner + outer Orbitals | | | Filling Orbital | | Ground State Electron Configuration | | Ground State Electron Configuration with free Orbitals (n=8) | ![[Picture]](028_f.jpg) | Ground State Electron Configuration with compressed Orbitals (n=24) | ![[Picture]](028_c.jpg) | | | | Singularity | | | | | | s | p | d | f | g | h | i | j | | 1 | 2 | | | | | | | | | 2 | 2 | 6 | | | | | | | | 3 | 2 | 6 | 8 | 2 | | | | | | | 4 | 2 | 6 | 10 | 14 | | | | | | 5 | | | | | | | | | | 6 | | | | | | | | | | 7 | | | | | | | | |
| | | | Term Symbol | 3F 4 | | Discovery | It was discovered by the Swedish metallurgist Axel-Frederik Cronstedt (Stockholm, Sweden) in 1751.
| | Name Derived From | The name derives from the German nickel for "deceptive little spirit" because miners called mineral niccolite (NiAs) by the name Kupfernickel (false copper, Devil's copper or St. Nicholas copper') because it resembled copper ores in appearance, but no copper was found in the ore. |
|