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Astronomy Chemical element

Neon

Neon (Ne) is a chemical element belonging to the category Noble gas, with atomic number 10 and atomic mass 20.1800 u. This sheet describes its fundamental properties, periodic position and physical characteristics.

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Astronomy · Chemical element

Neon

ELA

Identity

  • Name: Neon
  • Symbol: Ne
  • Atomic number: 10
  • Atomic mass: 20.1800 u

Position in the periodic table

  • Group: 18
  • Period: 2
  • Category: Noble gas

Physico-chemical properties

  • Standard state: Gas
  • Melting point: -248.6°C (24.6 K)
  • Boiling point: -246.0°C (27.1 K)
  • Density: Very low (~0.900 g/L at 0°C and 1 atm)
  • Electron configuration: 1s² 2s² 2p⁶

Scientific description

Neon is a chemical element with symbol Ne and atomic number 10. It belongs to the category of noble gases and occupies group 18 and period 2. At standard conditions it is a colorless, inert gas with very low density, and its standard atomic mass is 20.1800 u.