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Astronomy Chemical element

Hafnio

Hafnium (Hf) is a chemical element belonging to the category Transition metal, with atomic number 72 and atomic mass 178.4900 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

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Astronomy · Chemical element

Hafnium

EL20

Identity

  • Name: Hafnium
  • Symbol: Hf
  • Atomic number: 72
  • Atomic mass: 178.4900 u

Position in the periodic table

  • Group: 4
  • Period: 6
  • Category: Transition metal

Physico-chemical properties

  • Standard state: Solid
  • Melting point: Very high (around 2233°C)
  • Density: High
  • Electron configuration: [Xe] 4f¹⁴ 5d² 6s²

Scientific description

Hafnium is a chemical element with symbol Hf and atomic number 72. It belongs to the category of Transition metal and occupies group 4 and period 6. Its standard atomic mass is 178.4900 u.