Technical data for Nickel

Overview Name Nickel Symbol Ni Atomic Number 28 Atomic Weight 58.6934 Density 8.908 g/cm3 Melting Point 1455 °C Boiling Point 2913 °C Thermal properties Phase Solid Melting Point 1455 °C Boiling Point 2913 °C Absolute Melting Point 1728 K Absolute Boiling Point 3186 K Critical Pressure N/A Critical Temperature N/A Heat of Fusion 17.2 kJ/mol Heat of Vaporization 378 kJ/mol Specific Heat 445 J/(kg K)[note] Adiabatic Index N/A Neel Point N/A Thermal Conductivity 91 W/(m K) Thermal Expansion 0.0000134 K-1 Bulk physical properties Density 8.908 g/cm3 Density (Liquid) 7.81 g/cm3 Molar Volume 6.5888×10-6 Brinell Hardness 700 MPa Mohs Hardness 4 Vickers Hardness 638 MPa Bulk Modulus 180 GPa Shear Modulus 76 GPa Young Modulus 200 GPa Poisson Ratio 0.31 Refractive Index N/A Speed of Sound 4970 m/s Thermal Conductivity 91 W/(m K) Thermal Expansion 0.0000134 K-1 Reactivity Valence 2 Electronegativity 1.91 ElectronAffinity 112 kJ/mol Ionization Energies 737.1, 1753, 3395, 5300, 7339, 10400, 12800, 15600, 18600, 21670, 30970, 34000, 37100, 41500, 44800, 48100, 55101, 58570, 148700, 159000, 169400 kJ/mol Health and Safety DOT Hazard Class 4.1 DOT Numbers 3089 RTECS Number RTECSQR5950000 NFPA Label

Classifications Alternate Names None Names of Allotropes None Block d Group 10 Period 4 Series Transition Metal Electron Configuration [Ar]4s23d8 Color Gray Discovery 1751 in Sweden Gas phase N/A CAS Number CAS7440-02-0 CID Number CID935 RTECS Number RTECSQR5950000 Electrical properties Electrical Type Conductor Electrical Conductivity 1.4×107 S/m Resistivity 7.000000000002×10-8 m Ω Superconducting Point N/A Magnetic properties Magnetic Type Ferromagnetic Curie Point 631 K Mass Magnetic Susceptibility N/A Molar Magnetic Susceptibility N/A Volume Magnetic Susceptibility N/A Abundances % in Universe 0.006% % in Sun 0.008% % in Meteorites 1.3% % in Earth's Crust 0.009% % in Oceans 2×10-7% % in Humans 0.00001% Atomic dimensions and structure Atomic Radius 149 pm Covalent Radius 124 pm Van der Waals Radius 163 pm Crystal Structure Face-centered Cubic Lattice Angles π/2, π/2, π/2 Lattice Constants 352.4, 352.4, 352.4 pm Space Group Name Fm_ 3m Space Group Number 225 Nuclear Properties Half-Life Stable Lifetime Stable Decay Mode N/A Quantum Numbers 3F4 Neutron Cross Section 4.5 Neutron Mass Absorption 0.0026 Known Isotopes 48Ni, 49Ni, 50Ni, 51Ni, 52Ni, 53Ni, 54Ni, 55Ni, 56Ni, 57Ni, 58Ni, 59Ni, 60Ni, 61Ni, 62Ni, 63Ni, 64Ni, 65Ni, 66Ni, 67Ni, 68Ni, 69Ni, 70Ni, 71Ni, 72Ni, 73Ni, 74Ni, 75Ni, 76Ni, 77Ni, 78Ni Stable Isotopes 58Ni, 60Ni, 61Ni, 62Ni, 64Ni Isotopic Abundances 58Ni 68.0769% 60Ni 26.2231% 61Ni 1.1399% 62Ni 3.6345% 64Ni 0.9256%