Periodic Table of Elements showing Nickel transition elements





Nickel

ElementNickel
SymbolNi
Atomic Number28
Molar Mass58.71 gmol-1
Electron Configuration[Ar]3d84s2
Normal Statesolid metal
Density @STP8.91 g cm-3
Melting Point1455oC
Boiling Point2913oC
Stable Isotopes58Ni, 60Ni, 61Ni, 62Ni, 64Ni
Atomic Radius125 pm
Ionic Radius78 (2+) pm
Electronegativity (Pauling)1.91
Ionization Energy (1st)737 kJ mol-1
Ionization Energy (2nd)1753 kJ mol-1
Ionization Energy (3rd)3393 kJ mol-1
Molar Heat Capacity26.1 J K-1mol-1
Standard Molar Entropy29.9 J K-1mol-1
Enthalpy of Fusion17.6 kJ mol-1
Enthalpy of Vapourization371.8 kJ mol-1
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