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Chem Studio by Learn4Less

Element 72

Hafnium (Hf)

72
Hf

hafnium

Metal · d block · group 4, period 6

Electron configuration
[Xe] 6s2 4f14 5d2[\mathrm{Xe}]\,6s^{2}\,4f^{14}\,5d^{2}
Unpaired electrons
2 (paramagnetic)
Molar mass
178.49 g/mol
Electronegativity
1.3
Atomic radius
159 pm
First ionization energy
659 kJ/mol
Next ionization energies
1,440, 2,250
Electron affinity
anion not bound

Practice

Practice hafnium

No course questions are about hafnium specifically, but these lessons cover what you need.