Argon

facet 18 of periodic table is Argon v atomic number 18, atomic load 39.948. Argon, price Ar, has a Face centered Cubic structure and Colorless color. Argon is a noble gas element. Trivial surname of Argon is noble gases*, aerogens. Recognize everything around Argon Facts, physics Properties, chemical Properties, digital configuration, Atomic and Crystal Structure.


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Argon is a chemical aspect with prize Ar and atomic number 18. That is in team 18 that the routine table and is a noble gas. Argon is the 3rd most typical gas in the Earth\"s atmosphere, in ~ 0.934% (9,340 ppmv), making the over twice as abundant as the following most common atmospheric gas, water vapor (which averages about 4000 ppmv, yet varies greatly), and 23 time as abundant as the following most common non-condensing atmospheric gas, carbon dioxide (400 ppmv), and an ext than 500 time as plentiful as the next most common noble gas, neon (18 ppmv).

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Argon Facts

Read crucial information and facts around element Argon

surname Argon
atom Number 18
atomic Symbol Ar
Atomic load 39.948
phase Gas
shade Colorless
Classification noble gas
team in regular Table 18
Group Name helium family members or neon family members
period in routine Table 3
Block in regular Table p-block
Electronic Configuration 3s2 3p6
Melting point -189.3 °C
Boiling point -185.8 °C
Electronic shell Structure <2, 8, 8>
CAS Number CAS7440-37-1

community
9
F
10
Ne
17
Cl
18
Ar
35
Br
36
Kr
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1
1
H
2
He
2
3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
3
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6
55
Cs
56
Ba
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7
87
Fr
88
Ra
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Cn
113
Nh
114
Fl
115
Mc
116
Lv
117
Ts
118
Og
Lanthanides
57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
Actinide
89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr

explore our interactive regular table


How to find Argon on periodic Table

Periodic table is arranged by atom number, number of protons in the nucleus i m sorry is very same as number of electrons. The atomic number increases from left come right. Periodic table start at optimal left ( atomic number 1) and ends at bottom ideal (atomic number 118). Thus you can straight look because that atomic number 18 to find Argon on periodic table.

Another means to read routine table and locate an facet is through using group number (column) and period number (row). To find Argon on routine table look because that cross ar of group 18 and duration 3 in the contemporary periodic table.

discover Interactive routine Table come Understand and Learn Cool fads

Table of Contents


History
Abundance
Physical Properties
Thermal Properties
Crystal Structure
Atomic & orbit Properties
Chemical Properties
Isotopes
Health and also Safety Parameters and also Guidelines
Databases
Compare Argon with other elements

Argon History

The aspect Argon was discovered by lord Rayleigh in year 1894 in united kingdom . Argon obtained its surname from the Greek word argos, definition \"idle\"

Argon Presence: variety in Nature and Around Us

The table below shows the diversity of Argon in Universe, Sun, Meteorites, Earth\"s Crust, Oceans and also Human Body.

Ppb by load (1ppb =10^-7 %)
abundance in cosmos 0.0002
diversity in sun 7e-05
diversity in Meteorites N/A
Abundance in Earth\"s late 1.5e-06
abundance in oceans 4.5e-07
diversity in human beings N/A

Crystal structure of Argon

The hard state framework of Argon is Face centered Cubic.

The decision structure deserve to be defined in terms of its unit Cell. The unit cells repeats chin in 3 dimensional an are to type the structure.

Unit cell Parameters

The unit cell is stood for in regards to its lattice parameters, which space the lengths the the cell edges Lattice Constants (a, b and also c)

a b c
525.6 525.6 525.6 pm

and the angles in between them Lattice angle (alpha, beta and also gamma).

alpha beta gamma
π/2 π/2 π/2

The location of the atoms within the unit cell are described by the collection of atomic positions ( xi, yi, zi) measured indigenous a reference lattice point.

The symmetry properties of the decision are explained by the principle of space groups. All feasible symmetric species of particles in three-dimensional an are are explained by the 230 room groups (219 distinct types, or 230 if chiral copies are taken into consideration distinct.

room Group name Fm_ 3m
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space Group Number 225
Crystal framework Face centered Cubic

Argon Atomic and Orbital Properties

Argon atoms have 18 electrons and also the digital shell framework is <2, 8, 8> v Atomic ax Symbol (Quantum Numbers) 1S0.


atomic Number 18
Number of electrons (with no charge) 18
Number that Protons 18
Mass Number 40
Number of Neutrons 22
Shell structure (Electrons per power level) <2, 8, 8>
Electron configuration 3s2 3p6
Valence Electrons 3s2 3p6
Oxidation State
Atomic ax Symbol (Quantum Numbers) 1S0

Shell framework of Argon - electron per power level


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Ground State electronic Configuration of Argon - neutral Argon atom

The soil state electronic configuration that Neutral Argon atom is 3s2 3p6. The part of Argon configuration the is tantamount to the noble gas that the coming before period, is abbreviated as . Because that atoms with many electrons, this notation deserve to become lengthy and so an abbreviation notation is used.This is important as that is the Valence electrons 3s2 3p6, electron in the outermost shell that identify the chemical properties the the element.

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Unabbreviated digital configuration that neutral Argon

Complete floor state digital configuration for the Argon atom, Unabbreviated electronic configuration

1s2 2s2 2p6 3s2 3p6

Atomic structure of Argon

Argon atom radius is 71 pm, if it\"s covalent radius is 97 pm.

atom Radius

71 afternoon (0.71 Å)

Atomic Volume 22.3923766816 cm3
Covalent Radius 97 afternoon (0.97 Å)
valve der Waals Radius 188 pm
neutron Cross ar 0.65 σa/barns

Atomic Spectrum the Argon

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Argon chemical Properties: Argon Ionization Energies and electron affinity

The electron affinity that Argon is 0 kJ/mol

Valence 0
Electronegativity N/A
ElectronAffinity 0 kJ/mol

Ionization power of Argon

Refer to table below for Ionization energies that Argon

Ionization energy number Enthalpy - kJ/mol
1 1520.6
2 2665.8
3 3931
4 5771
5 7238
6 8781
7 11995
8 13842
9 40760
10 46186

Argon physical Properties

Refer to below table for Argon physical Properties

density 1.784 g/l
Molar Volume 22.3923766816 cm3

Elastic Properties

Young Modulus N/A
Shear Modulus N/A
bulk Modulus N/A
Poisson ratio N/A

Hardness of Argon - exam to measure up of Hardness that Element

Mohs Hardness N/A
Vickers Hardness N/A
Brinell Hardness N/A

Argon electric Properties

Argon is N/A the electricity. Refer to table listed below for the electric properties the Argon

electric Conductivity N/A
Resistivity N/A
Superconducting point N/A

Argon Heat and Conduction Properties

thermal Conductivity 0.01772 W/(m K)
Thermal growth N/A

Argon Magnetic Properties

Magnetic kind Diamagnetic
Curie point N/A
massive Magnetic Susceptibility -6×10-9
Molar Magnetic Susceptibility -2.4×10-10
Volume Magnetic Susceptibility -1.07×10-8

Optical properties of Argon

Refractive index 1.000281

Acoustic nature of Argon

rate of Sound 319 m/s

Argon thermal Properties - Enthalpies and thermodynamics

Refer to table listed below for thermal properties that Argon

Melting suggest 83.8 K (-189.3 °C)
Boiling point 87.3 K (-185.8 °C)
crucial Temperature 150.87 K
Superconducting allude N/A

Enthalpies of Argon

heat of blend 1.18 kJ/mol
warm of Vaporization 6.5 kJ/mol
warmth of burning N/A

Argon isotopes - atom Properties the Argon

Isotopes that rhodium. Naturally emerging Argon has 3 steady isotope - 36Ar, 38Ar, 40Ar.


Isotope Isotope mass % diversity T half Decay mode
30Ar
31Ar
32Ar
33Ar
34Ar
35Ar
36Ar 0.3365% stable N/A
37Ar
38Ar 0.0632% steady N/A
39Ar
40Ar 99.6003% stable N/A
41Ar
42Ar
43Ar
44Ar
45Ar
46Ar
47Ar
48Ar
49Ar
50Ar
51Ar
52Ar
53Ar

Regulatory and also Health - Health and also Safety Parameters and Guidelines

CAS Number CAS7440-37-1
RTECS Number RTECSCF2300000
period Hazard course 2.2
dot Numbers 1951
EU Number N/A
NFPA Fire Rating N/A
NFPA dangers N/A
NFPA wellness Rating N/A
NFPA Reactivity Rating N/A
Autoignition suggest N/A
Flashpoint N/A

Database Search

list of unique identifiers to find the element in various chemical it is registered databases

Database identifier number
CAS Number - chemistry Abstracts service (CAS) CAS7440-37-1
CID Number CID23968
Gmelin Number N/A
NSC Number N/A
RTECS Number RTECSCF2300000

Compare Argon through all Group 18 elements

Argon vs Helium Argon vs Neon Argon vs Krypton Argon vs Xenon Argon vs Radon Argon vs Oganesson

Compare Argon with all noble gas elements

Argon vs Helium Argon vs Neon Argon vs Krypton Argon vs Xenon Argon vs Radon Argon vs Oganesson