Neon (Ne)
Neon (Ne, element 10) is a noble gas in group 18, period 2. Atomic mass 20.18, electron configuration [He] 2s² 2p⁶, uses and facts.
About Neon
Neon is a noble gas with the symbol Ne and atomic number 10. It is a gas at room temperature, and it sits in group 18, period 2 of the periodic table. Neon was discovered in 1898 by William Ramsay.
Neon key facts
- Atomic number: 10
- Symbol: Ne
- Atomic mass: 20.18 u
- Category: noble gas
- Group: 18
- Period: 2
- State at room temperature: gas
- Electron configuration: [He] 2s² 2p⁶
- Electronegativity (Pauling): not assigned
- Melting point: 24.56 K (-248.59 °C)
- Boiling point: 27.07 K (-246.08 °C)
- Density: 0.0009 g/cm³
- Common oxidation states: 0
Electron configuration
The electron configuration of neon is [He] 2s² 2p⁶. The part in brackets is the noble gas core; the rest shows how the outer electrons fill their subshells. Neon has 8 valence electrons.
Uses of neon
- Neon signs
- Lasers
- Refrigeration
Did you know?
Neon signs don't actually contain just neon, different colors use different noble gases.
Other elements in group 18 and neighbours
Frequently asked questions
What is the atomic number of neon?
The atomic number of neon is 10, which means every neon atom has 10 protons.
What is the electron configuration of neon?
The electron configuration of neon is [He] 2s² 2p⁶.
What group and period is neon in?
Neon is a noble gas in group 18, period 2.
What state is neon at room temperature?
Neon is a gas at room temperature.
What is neon used for?
Neon is used for neon signs, lasers, refrigeration.