ئارگون

ئارگون (Ar)

chemical element with symbol Ar and atomic number 18; rare gas
Atomic Number18
Atomic Weight39.948
mass number40
Group18
Period3
Blockp
پروتون18 p+
neutron22 n0
ئېلېكترون18 e-
Animated بورمودىلى of Ar (ئارگون)

Physical Property

Atomic Radius
molar volume
covalent radius
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
density
Atomic Radii Of The Elements: ئارگون0102030405060708090100110120130140150160170180190pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

ئېنېرگىيە
proton affinity
electron affinity
ionization energy
ionization energy of Ar (ئارگون)
enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
ئېلېكترون
ئېلېكترون قەۋەت2, 8, 8
بورمودىلى: Ar (ئارگون)
valence electron8
Lewis structure: Ar (ئارگون)
electron configuration[Ne] 3s2 3p6
1s2 2s2 2p6 3s2 3p6
Enhanced بورمودىلى of Ar (ئارگون)
Orbital Diagram of Ar (ئارگون)
oxidation number0
electronegativity
Electrophilicity Index
fundamental state of matter
phase of matterGas
gaseous state of matterMonoatomic
Boiling Point
Melting Point
critical pressure
critical temperature
triple point
appearance
color
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
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio5/3
electrical properties
type
electrical conductivity
electrical resistivity
superconductivity
magnetism
typediamagnetic
magnetic susceptibility (Mass)
-0.000000006 m³/Kg
magnetic susceptibility (Molar)
-0.00000000024 m³/mol
magnetic susceptibility (Volume)
-0.0000000107
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal StructureFace Centered Cubic (FCC)
lattice constant
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
speed of sound
classification
CategoryNoble gases, Noble gases
CAS GroupVIII
IUPAC GroupVIIIA
Glawe Number3
Mendeleev Number114
Pettifor Number3
Geochemical Classvolatile
Goldschmidt classificationatmophile

other

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Neutron cross section
0.66
Neutron Mass Absorption
0.00059
quantum number1S0
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
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin5/2
nuclear quadrupole moment
time of discovery or invention2018
parity+

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

30Ar

mass number30
neutron number12
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention2015
parity+

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

31Ar

mass number31
neutron number13
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
-1.446 ± 0.012
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
0.42133333333333 ± 0.00013333333333333
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
0
natural abundance
0.3336 ± 0.021
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
time of discovery or invention1920
parity+

decay modeintensity
+ (double β+ decay)

37Ar

mass number37
neutron number19
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
0
natural abundance
0.0629 ± 0.007
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
time of discovery or invention1934
parity+

39Ar

mass number39
neutron number21
Relative Atomic Mass
g-factor
-0.45428571428571 ± 0.0042857142857143
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
0
natural abundance
99.6035 ± 0.025
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
time of discovery or invention1920
parity+

41Ar

mass number41
neutron number23
Relative Atomic Mass
g-factor
-0.37428571428571 ± 0.0022857142857143
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
-0.4088 ± 0.0024
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
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
Relative Atomic Mass
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
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

تارىخ

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

source

Abundance
Abundance in Earth's crust
natural abundance (ئوكيانىيە)
natural abundance (human body)
natural abundance (meteoroid)
natural abundance (قۇياش)
0.007 %
Abundance in Universe
0.02 %

Nuclear Screening Constants

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