10
Ne
Neon
20.17976
Basic Information
Name
Neon
Atomic Number
10
Gas Phase
Monatomic
Appearance
Colorless gas glows red-orange when placed in a high-voltage electric field
Refractive Index
1.000067
Phase At STP
Gas
Spectrum Image
Source
WikipediaBohr Model
Static
Interactive
Descriptive Numbers
CAS Number
7440-01-09
CID Number
CID23935
DOT Number
1913
RTECS Number
RTECSQP4450000
Mendeleev Number
113
Pettifor Number
2
Space Group Number
225
Glawe Number
2
Mass
Atomic Mass
20.17976 Da
Uncertainty
0.0006
Periodic Position
X Position
18
Y Position
2
Period
2
Group
18
Classification
Block
p
Category
Noble Gas
Geochemical
Volatile
Goldschmidt
Atmospheric
Abundance
Seawater
1.2e-10 kg/L
Sun
3 mole ratio to silicon
Earth Crust
5e-9 g
Solar System
3 mole ratio to silicon
Meteorites
N/A %
Color
Jmol
#B3E3F5
Molcas Gv
#B3E3F5
CPK
#FF1493
Atomic Radius
Empirical
160
Calculated
38
Van Der Waals
154
Bonding
154
Room Temperature
181
Rahm
156
Uff
324.3
Mm3
160
Alvarez
158
Covalent (Single Bound)
69
Covalent (Cordero)
58
Covalent (Pyykko)
67
Covalent (Pyykko Double)
96
Temperature
Melting/Freeze (USE)
24.56 °K
Melting/Freeze (WEL)
24.56 °K
Melting/Freeze (CRC)
24.41 °K
Melting/Freeze (LNG)
24.33 °K
Boiling/Density (USE)
27.104 °K
Boiling/Density (WEL)
27.07 °K
Boiling/Density (CRC)
26.954 °K
Boiling/Density (LNG)
26.95 °K
Boiling/Density (Zhang)
27 °K
Critical Temperature
44.4 °K
Critical Pressure
2.76 MPa
Density
STP
0.9002 kg/cm³
Gas
0.9002 kg/cm³
Heat
Molar Volume
14.17 cm³/mol
Atomic Volume
16.8 cm³
Heat Of Fusion CRC
0.328 kJ/mol
Heat Of Fusion LNG
0.335 kJ/mol
Heat Of Fusion WEL
0.34 kJ/mol
Evaporation USE
1.74 kJ/mol
Evaporation CRC
1.71 kJ/mol
Evaporation LNG
1.71 kJ/mol
Evaporation WEL
1.75 kJ/mol
Evaporation Zhang
1.9 kJ/mol
Heat Capacity USE
1.029 J/gK
Heat Capacity CRC
20.786 J/gK
Heat Capacity LNG
20.786 J/gK
Heat Capacity WEL
20.786 J/gK
Adiabatic Index
42799
Speed of Sound
Fluid
435 m/s
Magnetic Properties
Order
Diamagnetic
Susceptibility
-4.1e-9 m3/kg
Etymology
Description
It is a colorless gaseous element found in group 18 (noble gases) of the periodic table. Neon is found in the atmosphere and makes up 0.0018% of the atmosphere's volume. It emits a distinctive reddish glow when used in neon-based lamps and discharge tubes. It forms almost no compounds. Neon was invented in 1898 by Sir William Ramsey and M.W. It was discovered by Travers.
Language Of Origin
Greek
Origin Of Word
It comes from the Greek word neos, meaning 'new'.
Meaning
new
Etymological Description
It comes from the Greek word neos, meaning "new".
Discovery & Isolation
Observed/Predicted By
W. Ramsay ve W. Travers
Observed/Discovery Year
1898
Discovery Location
Isolated Sample By
W. Ramsay ve W. Travers
Isolated Sample Year
1898
Production & Use
Sources
It is obtained as a byproduct of the production of liquid oxygen and nitrogen in the production of liquid air.
Uses
It is mainly used for lighting.
Radioactivity
Half Life
Stable
Lifetime
Stable
Neutron Mass Absorption
0.0006
Neutron Cross Section
0.04
Electron Affinity
Proton Affinity
198.8
Electron Affinity (kJ/mol)
-116
Electron Affinity (allen)
28.31
Electron Affinity (ghosh)
0.38439
Dipole Polarity
Accepted
2.6611
Uncertainty
0.00003
C6 GB
6.91
C6 Coefficient
6.2
Lattice
Constant Internal Default Radius
4.43
Constant
442.9, 442.9, 442.9
Strucutre
FCC
Angles
p/2, p/2, p/2
Electron & Quantum
Electron Configuration
1s2 2s2 2p6
Quantum Number
1S0
Electron Configuration Semantic
[He] 2s2 2p6
Shells-0
2
Shells-1
8
Ionization Energies-0
2080.7
Ionization Energies-1
3952.3
Ionization Energies-2
6122
Ionization Energies-3
9371
Ionization Energies-4
12177
Ionization Energies-5
15238
Ionization Energies-6
19999
Ionization Energies-7
23069.5
Ionization Energies-8
115379.5
Ionization Energies-9
131432
