Neon (Ne)

chemical element with symbol Ne and atomic number 10; rare gas

Atomic Number	10
Atomic Weight	20.1797
mass number	20

Group	18
Period	2
Block	p

proton	10 p⁺
neutron	10 n⁰
electron	10 e^-

Physical Property

Atomic Radius	160 pm 156 pm
molar volume	16.8 cm³/mol
Covalent Radius	67 pm 96 pm 58 pm
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius	154 pm 154 pm 160 pm 324.3 pm
density	0.000825 g/cm³

Chemical Property

{ERROR}

energia

proton affinity	198.8 kJ/mol
electron affinity
ionization energy	21.56454 eV/particle 40.96296 eV/particle 63.42331 eV/particle 97.19 eV/particle 126.247 eV/particle 157.934 eV/particle 207.271 eV/particle 239.0969 eV/particle 1195.80779 eV/particle 1362.1991 eV/particle

enthalpy of vaporization	1.74 kJ/mol
enthalpy of fusion
standard enthalpy of formation
electron

Tegimen electronicum	2, 8

valence electron	8 ⓘ

electron configuration	[He] 2s² 2p⁶ⓘ 1s² 2s² 2p⁶

oxidation number
electronegativity	28.31 eV/particle 0.38439
Electrophilicity Index
fundamental state of matter

phase of matter
gaseous state of matter	Monoatomic
Boiling Point	27.104 K
Melting Point	24.56 K
critical pressure	2.6786 MPa
critical temperature	44.492 K
Punctum triplex	24.5561 K 43.37 kPa
appearance
Color	Black #ff1493 #b3e3f5 #b3e3f5
appearance	colorless gas exhibiting an orange-red glow when placed in a high voltage electric field
refractive index	1.000067
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity	20.786 J/(mol K)
Specific Heat Capacity	1.03 J/(g⋅K)
heat capacity ratio	5/3
electrical properties
type
electrical conductivity
electrical resistivity
Superconductrum
magnetism
type	diamagnetic
magnetic susceptibility (Mass)	-0.0000000041 m³/Kg
magnetic susceptibility (Molar)	-0.0000000000827 m³/mol
magnetic susceptibility (Volume)	-0.00000000369
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal Structure	{ERROR}
lattice constant	4.43 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
celeritas soni	936 m/s
classificare
Category	Actinides, Noble gases
CAS Group	VIII
IUPAC Group	VIIIA
Glawe Number	2
Mendeleev Number	113
Pettifor Number	2
Geochemical Class	volatile
Goldschmidt classification	atmophile

other

Gas Basicity	174.4 kJ/mol
polarizability	2.6611 ± 0.00003 a₀
C6 Dispersion Coefficient	6.2 a₀ 6.91 a₀
allotrope
Neutron cross section	0.04
Neutron Mass Absorption	0.00059
quantum number	1S0
space group	225 (Fm_3m)

Isotopes of Neon

Stable Isotopes	3
Unstable Isotopes	17
Natural Isotopes	3

¹⁵Ne

mass number	15
neutron number	5
Relative Atomic Mass	15.043172977 ± 0.000071588 Da
g-factor
natural abundance
radioactivitas	☢️ radioactive element
half-life	770 ± 300 ys
Volubilitas	3/2
nuclear quadrupole moment
repertus	2014
parity	-

decay mode	intensity
2p (2-proton emission)	100%

¹⁶Ne

mass number	16
neutron number	6
Relative Atomic Mass	16.02575086 ± 0.000021986 Da
g-factor	0
natural abundance
radioactivitas	☢️ radioactive element
half-life
Volubilitas	0
nuclear quadrupole moment	0
repertus	1977
parity	+

decay mode	intensity
2p (2-proton emission)	100%

¹⁷Ne

mass number	17
neutron number	7
Relative Atomic Mass	17.017713962 ± 0.00000038 Da
g-factor	1.5746 ± 0.0028
natural abundance
radioactivitas	☢️ radioactive element
half-life	109.2 ± 0.6 ms
Volubilitas	1/2
nuclear quadrupole moment	0
repertus	1963
parity	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	94.4%
β⁺α (β⁺-delayed α emission)	3.51%
B+pA	0.014%

¹⁸Ne

mass number	18
neutron number	8
Relative Atomic Mass	18.005708696 ± 0.00000039 Da
g-factor	0
natural abundance
radioactivitas	☢️ radioactive element
half-life	1664.2 ± 0.47 ms
Volubilitas	0
nuclear quadrupole moment	0
repertus	1954
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹⁹Ne

mass number	19
neutron number	9
Relative Atomic Mass	19.001880906 ± 0.000000171 Da
g-factor	-3.7703 ± 0.00014
natural abundance
radioactivitas	☢️ radioactive element
half-life	17.2569 ± 0.0019 s
Volubilitas	1/2
nuclear quadrupole moment	0
repertus	1939
parity	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

²⁰Ne

mass number	20
neutron number	10
Relative Atomic Mass	19.99244017525 ± 0.00000000165 Da
g-factor	0
natural abundance	90.48 ± 0.03
radioactivitas	stable isotope
half-life	Not Radioactive ☢️
Volubilitas	0
nuclear quadrupole moment	0
repertus	1913
parity	+

²¹Ne

mass number	21
neutron number	11
Relative Atomic Mass	20.993846685 ± 0.000000041 Da
g-factor	-0.44113333333333 ± 0.00002
natural abundance	0.27 ± 0.01
radioactivitas	stable isotope
half-life	Not Radioactive ☢️
Volubilitas	3/2
nuclear quadrupole moment
repertus	1928
parity	+

²²Ne

mass number	22
neutron number	12
Relative Atomic Mass	21.991385113 ± 0.000000018 Da
g-factor	0
natural abundance	9.25 ± 0.03
radioactivitas	stable isotope
half-life	Not Radioactive ☢️
Volubilitas	0
nuclear quadrupole moment	0
repertus	1913
parity	+

²³Ne

mass number	23
neutron number	13
Relative Atomic Mass	22.994466905 ± 0.000000112 Da
g-factor	-0.43176 ± 0.0004
natural abundance
radioactivitas	☢️ radioactive element
half-life	37.15 ± 0.03 s
Volubilitas	5/2
nuclear quadrupole moment	0.145 ± 0.013
repertus	1936
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁴Ne

mass number	24
neutron number	14
Relative Atomic Mass	23.993610649 ± 0.00000055 Da
g-factor	0
natural abundance
radioactivitas	☢️ radioactive element
half-life	3.38 ± 0.02 m
Volubilitas	0
nuclear quadrupole moment	0
repertus	1956
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁵Ne

mass number	25
neutron number	15
Relative Atomic Mass	24.997814797 ± 0.000031181 Da
g-factor	-2.012 ± 0.001
natural abundance
radioactivitas	☢️ radioactive element
half-life	602 ± 8 ms
Volubilitas	1/2
nuclear quadrupole moment	0
repertus	1970
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%

²⁶Ne

mass number	26
neutron number	16
Relative Atomic Mass	26.000516496 ± 0.000019784 Da
g-factor	0
natural abundance
radioactivitas	☢️ radioactive element
half-life	197 ± 2 ms
Volubilitas	0
nuclear quadrupole moment	0
repertus	1970
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.13%

²⁷Ne

mass number	27
neutron number	17
Relative Atomic Mass	27.007569462 ± 0.000097445 Da
g-factor
natural abundance
radioactivitas	☢️ radioactive element
half-life	30.9 ± 1.1 ms
Volubilitas	3/2
nuclear quadrupole moment
repertus	1977
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	2%
2n (2-neutron emission)

²⁸Ne

mass number	28
neutron number	18
Relative Atomic Mass	28.012130767 ± 0.000135339 Da
g-factor	0
natural abundance
radioactivitas	☢️ radioactive element
half-life	18.8 ± 0.2 ms
Volubilitas	0
nuclear quadrupole moment	0
repertus	1979
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	12%
2n (2-neutron emission)	3.7%

²⁹Ne

mass number	29
neutron number	19
Relative Atomic Mass	29.019753 ± 0.0001605 Da
g-factor
natural abundance
radioactivitas	☢️ radioactive element
half-life	14.7 ± 0.4 ms
Volubilitas	3/2
nuclear quadrupole moment
repertus	1985
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	28%
2n (2-neutron emission)	4%

³⁰Ne

mass number	30
neutron number	20
Relative Atomic Mass	30.024992235 ± 0.000271875 Da
g-factor	0
natural abundance
radioactivitas	☢️ radioactive element
half-life	7.22 ± 0.18 ms
Volubilitas	0
nuclear quadrupole moment	0
repertus	1985
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	13%
2n (2-neutron emission)	8.9%

³¹Ne

mass number	31
neutron number	21
Relative Atomic Mass	31.033474816 ± 0.000285772 Da
g-factor
natural abundance
radioactivitas	☢️ radioactive element
half-life	3.4 ± 0.8 ms
Volubilitas	3/2
nuclear quadrupole moment
repertus	1996
parity	-

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

³²Ne

mass number	32
neutron number	22
Relative Atomic Mass	32.03972 ± 0.00054 Da
g-factor	0
natural abundance
radioactivitas	☢️ radioactive element
half-life	3.5 ± 0.9 ms
Volubilitas	0
nuclear quadrupole moment	0
repertus	1990
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

³³Ne

mass number	33
neutron number	23
Relative Atomic Mass	33.049523 ± 0.000644 Da
g-factor
natural abundance
radioactivitas	☢️ radioactive element
half-life
Volubilitas	7/2
nuclear quadrupole moment
repertus
parity	-

decay mode	intensity
n (neutron emission)

³⁴Ne

mass number	34
neutron number	24
Relative Atomic Mass	34.056728 ± 0.000551 Da
g-factor	0
natural abundance
radioactivitas	☢️ radioactive element
half-life
Volubilitas	0
nuclear quadrupole moment	0
repertus	2002
parity	+

decay mode	intensity
β⁻ (β⁻ decay)
2n (2-neutron emission)
β⁻ n (β⁻-delayed neutron emission)

historia

inventor	Sir William Ramsey, M.W. Travers
location of discovery	England
repertus	1898
Etymologia	Greek: neos (new).
pronunciation	NEE-on (English)

source

Abundance
Abundance in Earth's crust	0.005 mg/kg
natural abundance (Oceanus)	0.00012 mg/L
natural abundance (Corpus humanum)
natural abundance (Meteoroides)
natural abundance (Sol)	0.1 %
Abundance in Universe	0.13 %

Nuclear Screening Constants

1	s	0.3579
2	p	4.2416
2	s	4.2416

Neon on ChemicalAid

Neon (Ne)

Physical Property

Chemical Property

other

Isotopes of Neon

15Ne

16Ne

17Ne

18Ne

19Ne

20Ne

21Ne

22Ne

23Ne

24Ne

25Ne

26Ne

27Ne

28Ne

29Ne

30Ne

31Ne

32Ne

33Ne

34Ne

historia

source

Nuclear Screening Constants

¹⁵Ne

¹⁶Ne

¹⁷Ne

¹⁸Ne

¹⁹Ne

²⁰Ne

²¹Ne

²²Ne

²³Ne

²⁴Ne

²⁵Ne

²⁶Ne

²⁷Ne

²⁸Ne

²⁹Ne

³⁰Ne

³¹Ne

³²Ne

³³Ne

³⁴Ne