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Neon (Ne) – Element 10 of the periodic table

Neon (symbol Ne) is element number 10 of the periodic table and belongs to the “Noble gas” category. Its atomic mass is about 20.18, and its phase under standard conditions is Gas. This element sits in period 2 and group 18 of the periodic table, and its electrons are arranged in shells of 2, 8. The short electron configuration of Neon is [He] 2s² 2p⁶. Known uses of Neon include Neon lamps, Lasers and Advertising signs.

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Properties of Neon

Atomic number
10
Chemical symbol
Ne
Atomic mass
20.18
Category
Noble gas
Period
2
Group
18
Phase
Gas
Protons
10
Electrons
10
Neutrons (approx.)
10
Electron shells
2, 8
Outer-shell electrons
8
Discovered
William Ramsay (1898)

Electron configuration of Neon

The electron configuration of Neon (Ne), with 10 electrons, is shown below. The last shell (shell 2) is highlighted:

Full configuration
1s² 2s² 2p⁶
Short configuration
[He] 2s² 2p⁶
Last shell
2s² 2p⁶

What is electron configuration and how is it written?

Electron shells of Neon

Distribution of 10 electrons of Neon across shells K to L:

  1. K2
  2. L8

What is a noble gas?

The noble gases are the group 18 elements: their outer shell is full, so under normal conditions they are very unreactive.

Uses of Neon

Frequently asked questions about Neon

What is the atomic number of Neon?

The atomic number of Neon (Ne) is 10; that is, every atom of it has 10 protons.

What is the electron configuration of Neon?

The electron configuration of Neon (Ne) is 1s² 2s² 2p⁶; in short form it is [He] 2s² 2p⁶, and its last shell is 2s² 2p⁶.

What is the chemical symbol of Neon?

The chemical symbol of Neon is Ne.

Where is Neon located in the periodic table?

Neon is located in period 2 and group 18 and belongs to the “Noble gas” category.

What is the atomic mass of Neon?

The atomic mass of Neon is about 20.18 (atomic mass units).

What is the phase of Neon under normal conditions?

The phase of Neon under standard conditions is Gas.

What are the uses of Neon?

Uses of Neon include Neon lamps, Lasers and Advertising signs.

Who discovered Neon?

Neon was discovered by William Ramsay in 1898.

Elements in the same category as Neon (Noble gas)

Helium (He)Argon (Ar)Krypton (Kr)Xenon (Xe)Radon (Rn)Oganesson (Og)

See all Noble gases

Neon’s group 18 neighbours

Helium (He)Argon (Ar)Krypton (Kr)Xenon (Xe)Radon (Rn)Oganesson (Og)

Group 18 of the periodic table