Neon

Neon [Ne] – Element Details, History, Atomic Structure, Facts, Properties, Electronic Configuration, Atomic Spectrum, Uses

neon symbol

Neon

Element 10 of Periodic table is Neon with atomic number 10, atomic weight 20.1797. Neon, symbol Ne, has a Face Centered Cubic structure and Colorless color. Neon is a noble gas element. Trivial name of Neon is noble gases*, aerogens. Know everything about Neon Facts, Physical Properties, Chemical Properties, Electronic configuration, Atomic and Crystal Structure.

neon-element

History of Neon

The element Neon was discovered by Morris Travers in year 1898 in United Kingdom . Neon derived its name from the Greek neos, meaning ‘new’

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.

How to Locate Neon on Periodic Table

Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of electrons. The atomic number increases from left to right. Periodic table starts at top left (atomic number 1) and ends at bottom right (atomic number 118). Therefore you can directly look for atomic number 10 to find Neon on periodic table.

Another way to read periodic table and locate an element is by using group number (column) and period number (row). To locate Neon on periodic table look for cross section of group 18 and period 2 in the modern periodic table.

Neon Facts

Name
Neon
Atomic Symbol
Ne
Atomic Number
10
Atomic Weight
20.1797
Phase
Gas
Colour
Colorless
Classification
Noble gas
Group in Periodic Table
18
Group Name
helium family or neon family
Period in Periodic Table
2
Block in Periodic Table
p-block
Electronic Configuration
[He] 2s2 2p6
Melting Point
-248.59 °C
Boiling Point
-246.08 °C
Electronic Shell Structure
[2, 8]
CAS Number
CAS7440-01-9

Neon Atomic Structure and Orbital Properties

Neon atoms have 10 electrons and the electronic shell structure is [2, 8] with Atomic Term Symbol (Quantum Numbers) 1S0.

neon atomic structure
neon isotopes

Element Properties

Atomic Number
10
Number of Protons
10
Mass Number
20
Number of Neutrons
10
Shell structure (Electrons per energy level)
[2, 8]
Electron Configuration
[He] 2s2 2p6
Valence Electrons
2s2 2p6
Oxidation State
Atomic Term Symbol (Quantum Numbers)
4S0

Atomic Structure of Neon

Atomic Radius
38 pm (0.38 Å)
Atomic Volume
22.4218888889 cm3
Covalent Radius
69 pm (0.69 Å)
Van der Waals Radius
154 pm
Neutron Cross Section
0.04 σa/barns

Ground State Electronic Configuration of Neon - neutral Neon atom

The ground state electronic configuration of Neutral Neon atom is [He] 2s2 2p6. The portion of Neon configuration that is equivalent to the noble gas of the preceding period, is abbreviated as [He]. For atoms with many electrons, this notation can become lengthy and so an abbreviated notation is used.This is important as it is the Valence electrons 2s2 2p6, electrons in the outermost shell that determine the chemical properties of the element.

Unabbreviated electronic configuration of neutral Neon

Complete ground state electronic configuration for the Neon atom, Unabbreviated electronic configuration

1s2 2s2 2p6

Atomic Spectrum of Neon

Neon Atomic Spectrum

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS Number
CAS7440-01-9
RTECS Number
RTECSQP4450000
EU Number
EU231-954-8
DOT Hazard Class
2.2
DOT Numbers
1913

Neon Chemical Properties : Neon Ionization Energies and electron affinity

Valence
0
ElectronAffinity
0 kJ/mol
Electronegativity

Use of Neon

Neon is also used to make high-voltage indicators and switching gear, lightning arresters, diving equipment and lasers. Liquid neon is an important cryogenic refrigerant. It has over 40 times more refrigerating capacity per unit volume than liquid helium, and more than 3 times that of liquid hydrogen.

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