Argon

Argon (Ar)

chemical element with symbol Ar and atomic number 18; rare gas
Atomic Number18
Atomic Weight39.948
Numri i masës40
Group18
Period3
Blockp
protoni18 p+
neutroni22 n0
elektroni18 e-
Animated Bohr model of Ar (Argon)

Tipar Fizik

Atomic Radius
71 pm
molar volume
covalent radius
96 pm
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
188 pm
density
0,001633 g/cm³
Atomic Radii Of The Elements: Argon0102030405060708090100110120130140150160170180190pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

energjia
proton affinity
369,2 kJ/mol
electron affinity
ionization energy
15,7596112 eV/particle
ionization energy of Ar (Argon)
enthalpy of vaporization
6,52 kJ/mol
enthalpy of fusion
standard enthalpy of formation
elektroni
electron shell2, 8, 8
Bohr model: Ar (Argon)
valence electron8
Lewis structure: Ar (Argon)
konfigurimi i elektronit[Ne] 3s2 3p6
1s2 2s2 2p6 3s2 3p6
Enhanced Bohr model of Ar (Argon)
Orbital Diagram of Ar (Argon)
oxidation number0
Elektronegativiteti
Electrophilicity Index
0,0832013314590371 eV/particle
fundamental state of matter
gjendja agregate e materiesGas
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
Ngjyra
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)
thermal expansion
molar heat capacity
20,786 J/(mol K)
Specific Heat Capacity
heat capacity ratio5/3
electrical properties
type
electrical conductivity
electrical resistivity
Superpërcjellshmëria
Magnetizimi
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
strukturë
Crystal StructureFace Centered Cubic (FCC)
lattice constant
5,26 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
Shpejtësia e zërit
319 m/s
klasifikim
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
numër kuantik1S0
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

Numri i masës29
numri i neutroneve11
relative atomic mass
29,040761 ± 0,000471 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2018
parity+

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

30Ar

Numri i masës30
numri i neutroneve12
relative atomic mass
30,023694 ± 0,000192 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2015
parity+

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

31Ar

Numri i masës31
numri i neutroneve13
relative atomic mass
31,012158 ± 0,000215 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
15 ± 0,3 ms
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1986
parity+

decay modeintensitet
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

Numri i masës32
numri i neutroneve14
relative atomic mass
31,997637824 ± 0,0000019 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
98 ± 2 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1977
parity+

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

33Ar

Numri i masës33
numri i neutroneve15
relative atomic mass
32,989925545 ± 0,00000043 Da
g-factor
-1,446 ± 0,012
natural abundance
Radioaktivitet☢️ radioactive element
half-life
173 ± 2 ms
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1964
parity+

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

34Ar

Numri i masës34
numri i neutroneve16
relative atomic mass
33,980270092 ± 0,000000083 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
846,46 ± 0,35 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1966
parity+

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

35Ar

Numri i masës35
numri i neutroneve17
relative atomic mass
34,975257719 ± 0,00000073 Da
g-factor
0,42133333333333 ± 0,00013333333333333
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,7756 ± 0,001 s
Spini3/2
nuclear quadrupole moment
-0,084 ± 0,015
koha e zbulimit apo shpikjes1940
parity+

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

36Ar

Numri i masës36
numri i neutroneve18
relative atomic mass
35,967545106 ± 0,000000028 Da
g-factor
0
natural abundance
0,3336 ± 0,021
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1920
parity+

decay modeintensitet
+ (double β+ decay)

37Ar

Numri i masës37
numri i neutroneve19
relative atomic mass
36,966776301 ± 0,000000221 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
35,011 ± 0,019 d
Spini3/2
nuclear quadrupole moment
0,076 ± 0,003
koha e zbulimit apo shpikjes1941
parity+

decay modeintensitet
ϵ (electron capture)100%

38Ar

Numri i masës38
numri i neutroneve20
relative atomic mass
37,962732102 ± 0,000000209 Da
g-factor
0
natural abundance
0,0629 ± 0,007
Radioaktivitetstable isotope
half-lifeNot Radioactive ☢️
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1934
parity+

39Ar

Numri i masës39
numri i neutroneve21
relative atomic mass
38,964313037 ± 0,000005367 Da
g-factor
-0,45428571428571 ± 0,0042857142857143
natural abundance
Radioaktivitet☢️ radioactive element
half-life
268 ± 8 y
Spini7/2
nuclear quadrupole moment
-0,116 ± 0,002
koha e zbulimit apo shpikjes1950
parity-

decay modeintensitet
β (β decay)100%

40Ar

Numri i masës40
numri i neutroneve22
relative atomic mass
39,96238312204 ± 0,00000000234 Da
g-factor
0
natural abundance
99,6035 ± 0,025
Radioaktivitetstable isotope
half-lifeNot Radioactive ☢️
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1920
parity+

41Ar

Numri i masës41
numri i neutroneve23
relative atomic mass
40,96450057 ± 0,000000372 Da
g-factor
-0,37428571428571 ± 0,0022857142857143
natural abundance
Radioaktivitet☢️ radioactive element
half-life
109,61 ± 0,04 m
Spini7/2
nuclear quadrupole moment
-0,042 ± 0,004
koha e zbulimit apo shpikjes1936
parity-

decay modeintensitet
β (β decay)100%

42Ar

Numri i masës42
numri i neutroneve24
relative atomic mass
41,963045737 ± 0,0000062 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
32,9 ± 1,1 y
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1952
parity+

decay modeintensitet
β (β decay)100%

43Ar

Numri i masës43
numri i neutroneve25
relative atomic mass
42,965636056 ± 0,0000057 Da
g-factor
-0,4088 ± 0,0024
natural abundance
Radioaktivitet☢️ radioactive element
half-life
5,37 ± 0,06 m
Spini5/2
nuclear quadrupole moment
0,142 ± 0,014
koha e zbulimit apo shpikjes1969
parity

decay modeintensitet
β (β decay)100%

44Ar

Numri i masës44
numri i neutroneve26
relative atomic mass
43,964923814 ± 0,0000017 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
11,87 ± 0,05 m
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1969
parity+

decay modeintensitet
β (β decay)100%

45Ar

Numri i masës45
numri i neutroneve27
relative atomic mass
44,968039731 ± 0,00000055 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
21,48 ± 0,15 s
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1974
parity-

decay modeintensitet
β (β decay)100%

46Ar

Numri i masës46
numri i neutroneve28
relative atomic mass
45,968039244 ± 0,0000025 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
8,4 ± 0,6 s
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1974
parity+

decay modeintensitet
β (β decay)100%

47Ar

Numri i masës47
numri i neutroneve29
relative atomic mass
46,972767112 ± 0,0000013 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,23 ± 0,03 s
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1985
parity

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

48Ar

Numri i masës48
numri i neutroneve30
relative atomic mass
47,976001 ± 0,000018 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
415 ± 15 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2004
parity+

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

49Ar

Numri i masës49
numri i neutroneve31
relative atomic mass
48,981685 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
236 ± 8 ms
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1989
parity-

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

50Ar

Numri i masës50
numri i neutroneve32
relative atomic mass
49,985797 ± 0,000537 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
106 ± 6 ms
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1989
parity+

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

51Ar

Numri i masës51
numri i neutroneve33
relative atomic mass
50,993033 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini1/2
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1989
parity-

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

52Ar

Numri i masës52
numri i neutroneve34
relative atomic mass
51,998519 ± 0,000644 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2009
parity+

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

53Ar

Numri i masës53
numri i neutroneve35
relative atomic mass
53,00729 ± 0,00075 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2009
parity-

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

54Ar

Numri i masës54
numri i neutroneve36
relative atomic mass
54,013484 ± 0,000859 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes2018
parity+

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

historia

zbuluesSir William Ramsey, Baron Rayleigh
vendndodhja e zbulimitScotland
koha e zbulimit apo shpikjes1894
EtimologjiaGreek: argos (inactive).
pronunciationAR-gon (anglisht)

burim

Abundance
Abundance in Earth's crust
3,5 mg/kg
natural abundance (Oqeani)
0,45 mg/L
natural abundance (Trupi i njeriut)
natural abundance (meteoroid)
natural abundance (Diell)
0,007 %
Abundance in Universe
0,02 %

Nuclear Screening Constants

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