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Astronomy Chemical element

Nobelio

Nobelio (No) is a chemical element belonging to the category Inner transition metal, with atomic number 102 and atomic mass 259.0000 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

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Astronomy · Chemical element

Nobelium

EL2U

Identity

  • Name: Nobelio
  • Symbol: No
  • Atomic number: 102
  • Atomic mass: 259.0000 u

Position in the periodic table

  • Group: 3
  • Period: 7
  • Category: Inner transition metal

Physico-chemical properties

  • Standard state: Solid
  • Melting point: Around 827°C (1100 K, estimated)
  • Density: Around 9.9 g/cm³ (very high, estimated)
  • Electron configuration: [Rn] 5f¹⁴ 7s²

Scientific description

Nobelio is a chemical element with symbol No and atomic number 102. It belongs to the category of Inner transition metal and occupies group 3 and period 7. Its standard atomic mass is 259.0000 u.