ESL Saigon logo



Name: Neon
Symbol: Ne
Number of Energy Levels: 2
Electrons on the outer energy level: 8
Atomic number: 10
Atomic Mass: 20.1797 Amu (Atomic Mass Units)
Protons/Electrons: 10
Neutrons: 10
Density: 0.901 g/cm3
Classification: Noble Gas

Neon | Chemical elements

Neon is a noble gas discovered in 1898 by Sir Willian Ramsey and its name comes from the Greek word neos which means new. Neon is obtained from liquid air and it is mainly used in lighting.

Top 10 interesting facts about Neon

  1. Neon’s melting point is at -248.6 °C (24.549994 K, -415.48 °F).
  2. Neon’s boiling point is at -246.1 °C (27.049994 K, -410.98 °F).
  3. It has a cubic crystal structure and it is colorless, odorless, inert, and monatomic gas.
  4. Neon has three stable isotopes Ne-20, Ne-21, and Ne-22.
  5. Neon, being an inert gas, does not form chemical compounds under normal conditions.
  6. Neon is a rare gas on Earth but it is the fifth abundant element in the Universe.
  7. Neon is a very volatile gas which means it has a great tendency to vaporize.
  8. Neon produces a red-orange light when used in electrified tube lights (other colors are obtained using different noble gases).
  9. Neon is used as a cryogenic refrigerant because it has more refrigerating capacity (over 40 times) than Helium.
  10. It is very expensive (sometimes even 50 times more expensive than Helium) because the only one source of Neon is liquid air.

Back to index