179Hf Isotope Information and Examples of Enriched 179Hf Applications:

Hafnium-179 isotope (Hf-179 isotope, 179Hf isotope)

  • 179Hf isotope is used for research in nuclear physics;

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179Hf oxide Safety Data Sheet (SDS) - Download pdf file
Download 179Hf oxide SDS

Properties Of 179Hf Isotope:

Property179Hf
Neutron Number (N)107
Atomic Number / Proton Number (Z)72
Mass Number / Nucleon Number (A)179
Natural Abundance (%)0.1362
Atomic Mass (Da)178.94582
Relative Isotopic Mass178.94582
Spin4.5
Quadrupole Moment3.79
g-factor (g value)-0.1424
Half-life
Group4
Period6
Electron Configuration Blockd
Melting Point (K)2503
Boiling Point (K)5470
Specific Heat0.146
Heat of Formation618.4
Thermal Conductivity23
Dipole Polarizability 103
Electron Affinity (kJ/mole)0.014
Electronegativity (Pauling scale)1.3
Atomic Radius (pm)167
Covalent Radius (pm)155
VDW Radius (pm)253
Lattice Constant3.2
Crystal StructureHEX
Jmol color#4dc2ff

Hafnium Information

Silvery lustrous metallic transition element. Used in tungsten alloys in filaments and electrodes, also acts as a neutron absorber. First reported by Urbain in 1911, existence was finally established in 1923 by D. Coster, G.C. de Hevesy in 1923.

Used in reactor control rods because of its ability to absorb neutrons.

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