neon

Also known as Ne, element 10, ₁₀Ne

Neon is a chemical element; it has the symbol Ne and the atomic number 10. It is the second noble gas in the periodic table. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with approximately two-thirds the density of air.

AI overview

Neon is a colorless, odorless gas that belongs to a special group of elements called noble gases and is identified by the chemical symbol Ne on the periodic table. It's used in applications like neon signs and lighting because of its unique properties, though it's chemically inert, meaning it rarely reacts with other elements.

AI-generated from the Wikipedia summary — may contain errors.

Chemical data

Formula: Ne
Molecular weight: 20.18 g/mol
IUPAC name: neon
SMILES: [Ne]
InChIKey: GKAOGPIIYCISHV-UHFFFAOYSA-N
Polar surface area: 0 Å²
H-bond donors: 0
H-bond acceptors: 0
Formal charge: 0

via PubChem

Research

4,649 papers

Neon ion radiotherapy: physics and biology.ReviewPhysics in medicine and biology · 2026Mein S, Masuda T, Kasamatsu K et al.DOI: 10.1088/1361-6560/ae22b7
Neon neurons.Neurology · 2013Sanchez-Ramos JZDOI: 10.1212/WNL.0b013e3182918d16
Neon ion ((20) Ne(10) (+) ) charged particle beams manipulate rapid tumor reoxygenation in syngeneic mouse models.Cancer science · 2024Imaizumi A, Hirayama R, Ikoma Y et al.DOI: 10.1111/cas.16017
PPARα mediates night neon light-induced weight gain: role of lipid homeostasis.Theranostics · 2020Luo Y, Yang J, Kang J et al.DOI: 10.7150/thno.50953
Neon ion radiotherapy: results of the phase I/II clinical trial.International journal of radiation oncology, biology, physics · 1991Linstadt DE, Castro JR, Phillips TLDOI: 10.1016/0360-3016(91)90020-5
Statistical analysis plans for two randomised controlled trials of the Narrative Experiences Online (NEON) Intervention: impact of receiving recorded mental health recovery narratives on quality of life in people experiencing psychosis (NEON) and people experiencing non-psychosis mental health problems (NEON-O).Trials · 2023Robinson C, Newby C, Rennick-Egglestone S et al.DOI: 10.1186/s13063-023-07246-8
[The pharmacology of the rare gases (helium, neon, argon, krypton, xenon)].ReviewActualites pharmacologiques · 1974Featherstone RM, Settle W
[The He/Neon soft-laser in the treatment of decubitus ulcer].ReviewMinerva chirurgica · 1988Ceschino M, Enrichens F, Olivero G

via PubMed

Wikidata facts

Mass: 20.1797
Image: NeTube.jpg

Show 14 more facts

element symbol: Ne
Commons category: Neon
atomic number: 10
speed of sound: 435
Commons gallery: Neon
chemical formula: Ne
canonical SMILES: [Ne]
time of discovery or invention: 1898-00-00
standard molar entropy: 146.2
Unicode character: 氖
electron configuration: [He] 2s² 2p⁶
melting point: -248.6
boiling point: -246.0
density: 0.90035

Sources (8)

via Wikidata · CC0

~16 min read

Article

12 sections

Contents

History
Isotopes
Characteristics
Occurrence
Chemistry
Production
2022 shortage
Applications
Lighting and signage
Other
References
External links

Neon was discovered in 1898 alongside krypton and xenon, identified as one of the three remaining rare inert elements in dry air after the removal of nitrogen, oxygen, argon, and carbon dioxide. Its discovery was marked by the distinctive bright red emission spectrum it exhibited, leading to its immediate recognition as a new element. The name neon originates from the Greek word , a neuter singular form of (), meaning 'new'. Neon is a chemically inert gas; although neon compounds do exist, they are primarily ionic molecules or fragile molecules held together by van der Waals forces.