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Astronomy Chemical element

Platinum

Platinum (Pt) is a chemical element belonging to the category Transition metal, with atomic number 78 and atomic mass 195.0800 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

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Above, what contains it; below, what it contains; on the right, what links it to another layer.

Astronomy · Chemical element

Platinum

EL26

Identity

  • Name: Platinum
  • Symbol: Pt
  • Atomic number: 78
  • Atomic mass: 195.0800 u

Position in the periodic table

  • Group: 10
  • Period: 6
  • Category: Transition metal

Physico-chemical properties

  • Standard state: Solid
  • Melting point: High (≈ 1768°C)
  • Density: Very high
  • Electron configuration: [Xe] 4f¹⁴ 5d⁹ 6s¹

Scientific description

Platinum is a chemical element with symbol Pt and atomic number 78. It belongs to the category of transition metals and occupies group 10 and period 6. Its standard atomic mass is 195.0800 u.