氖

Also known as Ne, element 10, ₁₀Ne

原子序為10的化學元素

OverviewAI-generated

Neon is a chemical element with the symbol Ne and atomic number 10. Its standard molar entropy is 146.2, and its mass is 20.1797. The element has a density of 1.444 and a speed of sound of 435. It was discovered in 1898.

The melting point of neon is -248.6, and its boiling point is -246.0. Its electron configuration is 1s² 2s² 2p⁶, or [He] 2s² 2p⁶. The canonical SMILES representation is [Ne], and the Unicode character is 氖.

In chemical databases, neon is identified by CID 23935 and InChIKey GKAOGPIIYCISHV-UHFFFAOYSA-N. It has a molecular weight of 20.180 and a topological polar surface area of 0. It has zero hydrogen bond donors and acceptors, with a charge of 0. References to neon appear in 4649 PubMed articles and are cited by 850 other encyclopedia articles.

Synthesized by Vinony from 27 facts across 4 sources: Wikidata, PubChem, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still 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

Instance of: atmophile element
Subclass of: noble gases
Part of: noble gases
Named after: novelty
Mass: 20.1797
Image: NeTube.jpg

Show 19 more facts

element symbol: Ne
Commons category: Neon
topic's main category: 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
discoverer or inventor: Morris Travers
location of discovery: United Kingdom
standard molar entropy: 146.2
Unicode character: 氖
electron configuration: [He] 2s² 2p⁶
different from: Neon
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4
melting point: -248.6
boiling point: -246.0
density: 0.90035

Sources (8)

via Wikidata · CC0

Article · 中文

氖（拼音：nǎi，注音：ㄋㄞˇ；英語：Neon；舊譯氝，訛作氞），是一種化學元素，化學符號为Ne，原子序數为10，原子量為20.1797 u。氖在標準狀態下是一種無色無味的惰性單原子氣體，其密度是空氣的三分之二。它在1898年和氪及氙被發現為三種空氣中就有的惰性氣體之一，氖是上述三種稀有氣體中第二個被發現的，因為它亮紅的放射譜線，它馬上就被認出是一個新元素。氖這個名字是從希臘文翻譯過來的，意思是新的。氖是惰性的，且沒有任何不帶電的氖的化合物曾被發現。目前所知的氖的化合物僅有離子化合物，而它們是被凡得瓦力束縛在一起的。在宇宙的核合成的過程中，大量的氖從恆星的氦核作用中產生。雖然氖在宇宙和太陽系中十分常見（氖在宇宙的含量為第5多，僅低於氫、氦、氧和碳），但其在地球上十分稀少，大約只佔總空氣體積的18.2ppm（大約與其莫耳分率相同），且在地球表面上含量更少。因為氖為高度揮發的物質且無法合成固態的化合物，所以其在地球及其他類地行星都十分稀少。氖會在新生太陽的溫暖下從微行星逸散。雖然和前述原因不同，但氖甚至在木星的外層大氣略有些消耗。氖也比空氣還要輕，使其甚至能從地球的大氣層逸散。氖在低電壓的氖燈、和霓虹燈下會發出明顯的紅橙色光。氖也應用在跟冷凍設備中，也有少數的商業用途。它的商業來源主要由液態空氣分餾而來。因為空氣是唯一的來源，所以氖氣較氦氣為貴。

Abstract from DBpedia / Wikipedia · CC BY-SA