Neon

Noble gas · atomic number 10

1020.17976NeNeonGasNoble gas

Neon is a chemical element with symbol Ne and atomic number 10. It is in group 18 (noble gases) of the periodic table. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air.

Properties of Neon

Element category	Noble gas
Atomic number	10
Atomic mass	20.17976 u
Phase at STP	Gas
Group	18
Period	2
Block	p
Electron configuration	[He] 2s2 2p6
Electrons per shell	2, 8
Melting point	24.56 K (-249 °C)
Boiling point	27.104 K (-246 °C)
Density	0.9002 g/L
Discovered by	Morris Travers

← Fluorine · Periodic table · Sodium → Na

About the noble gas group

Full outer electron shells make these gases almost inert: they barely react, glow in discharge lamps and are used to create unreactive atmospheres.

Data: Periodic-Table-JSON (CC BY-SA 3.0) · stored statically on our server. https://en.wikipedia.org/wiki/Neon

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🧪 Reactive nonmetal

11 elements: Elements that readily gain or share electrons — the building blocks of water, air, living tissue and most organic chemistry.

🧪 Noble gas

6 elements: Full outer electron shells make these gases almost inert: they barely react, glow in discharge lamps and are used to create unreactive atmospheres.

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6 elements: Soft, wildly reactive metals of group 1 — they fizz in water and never occur pure in nature. Lithium, sodium, potassium and friends.

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