Argon

Argon (Ar)

chemical element with symbol Ar and atomic number 18; rare gas
Atomic Number18
Atomic Weight39.948
mass number40
Group18
Period3
Blockp
Proton18 p+
Neytron22 n0
Elektron18 e-
Animated Bohr model of Ar (Argon)

Fizik Xossa

Atom Radiusi
71 pm
Molyar hajm
Kovalentlik Radiusi
96 pm
Metallic Radius
Ion radiuslar
Crystal Radius
Van der Waals radius
188 pm
density
0,001633 g/cm³
Atomic Radii Of The Elements: Argon0102030405060708090100110120130140150160170180190pmAtom RadiusiKovalentlik RadiusiMetallic RadiusVan der Waals radius

Chemical Property

energiya
proton affinity
369,2 kJ/mol
electron affinity
ionization energy
15,7596112 eV/particle
ionization energy of Ar (Argon)
Solishtirma qaynash issiqligi
6,52 kJ/mol
solishtirma erish issiqligi
standard enthalpy of formation
Elektron
Ion asboblar2, 8, 8
Bohr model: Ar (Argon)
valence electron8
Lewis structure: Ar (Argon)
electron configuration[Ne] 3s2 3p6
1s2 2s2 2p6 3s2 3p6
Enhanced Bohr model of Ar (Argon)
Orbital Diagram of Ar (Argon)
Oksidlanish darajasi0
Elektrmanfiylik
Electrophilicity Index
0,0832013314590371 eV/particle
fundamental state of matter
phase of matterGas
gaseous state of matterMonoatomic
Boiling Point
87,302 K
Melting Point
83,81 K
critical pressure
4,863 MPa
critical temperature
150,687 K
triple point
83,8058 K
68,89 kPa
appearance
Rang
Colorless
appearancecolorless gas exhibiting a lilac/violet glow when placed in a high voltage electric field
refractive index
1,000281
thermodynamic material property
Thermal Conductivity
0,0177 W/(m K)
Issiqlikdan kengayish
molar heat capacity
20,786 J/(mol K)
Specific Heat Capacity
heat capacity ratio5/3
electrical properties
type
electrical conductivity
electrical resistivity
superconductivity
Magnetizm
typediamagnetic
magnetic susceptibility (Mass)
-0,000000006 m³/Kg
magnetic susceptibility (Molar)
-0,00000000024 m³/mol
magnetic susceptibility (Volume)
-0,0000000107
magnetic ordering
Kyuri nuqtasi
Néel temperature
Tuzilma
Crystal StructureFace Centered Cubic (FCC)
Kristall panjara davri
5,26 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
Qattiqlik
bulk modulus
shear modulus
Yung moduli
Poisson's ratio
Tovush tezligi
319 m/s
klassifikatsiya
CategoryNoble gases, Noble gases
CAS GroupVIII
IUPAC GroupVIIIA
Glawe Number3
Mendeleev Number114
Pettifor Number3
Geochemical Classvolatile
Goldschmidt classificationatmophile

other

Gas Basicity
346,3 kJ/mol
polarizability
11,083 ± 0,007 a₀
C6 Dispersion Coefficient
64,2 a₀
allotrope
Neutron cross section
0,66
Neutron Mass Absorption
0,00059
Atom kvant sonlari1S0
space group225 (Fm_3m)

Isotopes of Argon

Stable Isotopes2
Unstable Isotopes24
Natural Isotopes3
Isotopic Composition4099.60%4099.60%360.33%360.33%380.06%380.06%

29Ar

mass number29
neutron number11
Nisbiy atom massa
29,040761 ± 0,000471 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin5/2
nuclear quadrupole moment
time of discovery or invention2018
parity+

decay modeintensity
2p (2-proton emission)100%

30Ar

mass number30
neutron number12
Nisbiy atom massa
30,023694 ± 0,000192 Da
g-factor
0
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin0
nuclear quadrupole moment
0
time of discovery or invention2015
parity+

decay modeintensity
2p (2-proton emission)100%

31Ar

mass number31
neutron number13
Nisbiy atom massa
31,012158 ± 0,000215 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
15 ± 0,3 ms
spin5/2
nuclear quadrupole moment
time of discovery or invention1986
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)68.3%
2p (2-proton emission)9%
B+pA0.38%
3p0.07%
β+α (β+-delayed α emission)0.03%
2p (2-proton emission)0.0006%

32Ar

mass number32
neutron number14
Nisbiy atom massa
31,997637824 ± 0,0000019 Da
g-factor
0
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
98 ± 2 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1977
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)35.58%

33Ar

mass number33
neutron number15
Nisbiy atom massa
32,989925545 ± 0,00000043 Da
g-factor
-1,446 ± 0,012
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
173 ± 2 ms
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1964
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)38.7%

34Ar

mass number34
neutron number16
Nisbiy atom massa
33,980270092 ± 0,000000083 Da
g-factor
0
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
846,46 ± 0,35 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1966
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

35Ar

mass number35
neutron number17
Nisbiy atom massa
34,975257719 ± 0,00000073 Da
g-factor
0,42133333333333 ± 0,00013333333333333
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
1,7756 ± 0,001 s
spin3/2
nuclear quadrupole moment
-0,084 ± 0,015
time of discovery or invention1940
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

36Ar

mass number36
neutron number18
Nisbiy atom massa
35,967545106 ± 0,000000028 Da
g-factor
0
natural abundance
0,3336 ± 0,021
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin0
nuclear quadrupole moment
0
time of discovery or invention1920
parity+

decay modeintensity
+ (double β+ decay)

37Ar

mass number37
neutron number19
Nisbiy atom massa
36,966776301 ± 0,000000221 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
35,011 ± 0,019 d
spin3/2
nuclear quadrupole moment
0,076 ± 0,003
time of discovery or invention1941
parity+

decay modeintensity
ϵ (electron capture)100%

38Ar

mass number38
neutron number20
Nisbiy atom massa
37,962732102 ± 0,000000209 Da
g-factor
0
natural abundance
0,0629 ± 0,007
Radioaktivlikstable isotope
Yarim yemirilish davriNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
time of discovery or invention1934
parity+

39Ar

mass number39
neutron number21
Nisbiy atom massa
38,964313037 ± 0,000005367 Da
g-factor
-0,45428571428571 ± 0,0042857142857143
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
268 ± 8 y
spin7/2
nuclear quadrupole moment
-0,116 ± 0,002
time of discovery or invention1950
parity-

decay modeintensity
β (β decay)100%

40Ar

mass number40
neutron number22
Nisbiy atom massa
39,96238312204 ± 0,00000000234 Da
g-factor
0
natural abundance
99,6035 ± 0,025
Radioaktivlikstable isotope
Yarim yemirilish davriNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
time of discovery or invention1920
parity+

41Ar

mass number41
neutron number23
Nisbiy atom massa
40,96450057 ± 0,000000372 Da
g-factor
-0,37428571428571 ± 0,0022857142857143
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
109,61 ± 0,04 m
spin7/2
nuclear quadrupole moment
-0,042 ± 0,004
time of discovery or invention1936
parity-

decay modeintensity
β (β decay)100%

42Ar

mass number42
neutron number24
Nisbiy atom massa
41,963045737 ± 0,0000062 Da
g-factor
0
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
32,9 ± 1,1 y
spin0
nuclear quadrupole moment
0
time of discovery or invention1952
parity+

decay modeintensity
β (β decay)100%

43Ar

mass number43
neutron number25
Nisbiy atom massa
42,965636056 ± 0,0000057 Da
g-factor
-0,4088 ± 0,0024
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
5,37 ± 0,06 m
spin5/2
nuclear quadrupole moment
0,142 ± 0,014
time of discovery or invention1969
parity

decay modeintensity
β (β decay)100%

44Ar

mass number44
neutron number26
Nisbiy atom massa
43,964923814 ± 0,0000017 Da
g-factor
0
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
11,87 ± 0,05 m
spin0
nuclear quadrupole moment
0
time of discovery or invention1969
parity+

decay modeintensity
β (β decay)100%

45Ar

mass number45
neutron number27
Nisbiy atom massa
44,968039731 ± 0,00000055 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
21,48 ± 0,15 s
spin5/2
nuclear quadrupole moment
time of discovery or invention1974
parity-

decay modeintensity
β (β decay)100%

46Ar

mass number46
neutron number28
Nisbiy atom massa
45,968039244 ± 0,0000025 Da
g-factor
0
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
8,4 ± 0,6 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1974
parity+

decay modeintensity
β (β decay)100%

47Ar

mass number47
neutron number29
Nisbiy atom massa
46,972767112 ± 0,0000013 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
1,23 ± 0,03 s
spin3/2
nuclear quadrupole moment
time of discovery or invention1985
parity

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.2%

48Ar

mass number48
neutron number30
Nisbiy atom massa
47,976001 ± 0,000018 Da
g-factor
0
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
415 ± 15 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention2004
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)38%

49Ar

mass number49
neutron number31
Nisbiy atom massa
48,981685 ± 0,000429 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
236 ± 8 ms
spin3/2
nuclear quadrupole moment
time of discovery or invention1989
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)29%
2n (2-neutron emission)

50Ar

mass number50
neutron number32
Nisbiy atom massa
49,985797 ± 0,000537 Da
g-factor
0
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
106 ± 6 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1989
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)37%
2n (2-neutron emission)

51Ar

mass number51
neutron number33
Nisbiy atom massa
50,993033 ± 0,000429 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1989
parity-

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)

52Ar

mass number52
neutron number34
Nisbiy atom massa
51,998519 ± 0,000644 Da
g-factor
0
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin0
nuclear quadrupole moment
0
time of discovery or invention2009
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)

53Ar

mass number53
neutron number35
Nisbiy atom massa
53,00729 ± 0,00075 Da
g-factor
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin5/2
nuclear quadrupole moment
time of discovery or invention2009
parity-

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)

54Ar

mass number54
neutron number36
Nisbiy atom massa
54,013484 ± 0,000859 Da
g-factor
0
natural abundance
Radioaktivlik☢️ Radioaktiv elementlar
Yarim yemirilish davri
spin0
nuclear quadrupole moment
0
time of discovery or invention2018
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)
Argon ice 1

tarix

discoverer or inventorSir William Ramsey, Baron Rayleigh
location of discoveryScotland
time of discovery or invention1894
EtimologiyaGreek: argos (inactive).
pronunciationAR-gon (inglizcha)

source

Abundance
Abundance in Earth's crust
3,5 mg/kg
natural abundance (Okean)
0,45 mg/L
natural abundance (Inson tanasi)
natural abundance (Meteoroid)
natural abundance (Quyosh)
0,007 %
Abundance in Universe
0,02 %

Nuclear Screening Constants

1s0.4925
2p3.9918
2s5.7696
3p11.2359
3s10.2432