;

Periodic Table Element Comparison: Compare Elements - Argon vs Chromium

Compare Argon and Chromium

Compare Argon and Chromium on the basis of their properties, attributes and periodic table facts. Compare elements on more than 90 properties. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses. These similarities and dissimilarities should be known while we study periodic table elements. You can study the detailed comparison between Argon vs Chromium with most reliable information about their properties, attributes, facts, uses etc. You can compare Ar vs Cr on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.

Facts

Argon
18
Ar
39.948
Gas
Colorless
noble gas
18
helium family or neon family 
3
p
[Ne] 3s2 3p6
-189.3 °C
-185.8 °C
2, 8, 8
CAS7440-37-1
Neighborhood Elements of Argon
Chromium
24
Cr
51.9961
Solid
Silver
transition metal
6
chromium family 
4
d
[Ar] 3d5 4s1
1907 °C
2671 °C
2, 8, 13, 1
CAS7440-47-3
Neighborhood Elements of Chromium

History

History
The element Argon was discovered by Lord Rayleigh in year 1894 in United Kingdom. Argon derived its name from from the Greek word argos, meaning 'idle'
The element Chromium was discovered by Louis Nicolas Vauquelin in year 1797 in France. Chromium derived its name derived its name from from the Greek word chroma, meaning 'color'

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
0.0002
7e-05
N/A
1.5e-06
4.5e-07
N/A
1.5e-05
2e-05
0.003
0.00014
6×10-8%
3×10-6%

Crystal Structure and Atomic Structure

71 pm
22.392376681614 cm3
97 pm
188 pm
0.65
argon Spectrum
525.6, 525.6, 525.6 pm
π/2, π/2, π/2
Fm_ 3m
225

Face Centered Cubic

argon Crystal Structure
166 pm
7.2823669467787 cm3
127 pm
N/A
3.1
chromium Spectrum
291, 291, 291 pm
π/2, π/2, π/2
Im_ 3m
229

Body Centered Cubic

chromium Crystal Structure

Atomic and Orbital Properties

Atomic Number
Number of Electrons (with no charge)
Number of Protons
Mass Number
Number of Neutrons
Shell structure (Electrons per energy level)
Electron Configuration
Valence Electrons
Oxidation State
Atomic Term Symbol (Quantum Numbers)
Shell structure
18
18
18
39.948
21.948
2, 8, 8
[Ne] 3s2 3p6
3s2 3p6
 
1S0
argon Shells
24
24
24
51.9961
27.9961
2, 8, 13, 1
[Ar] 3d5 4s1
3d5 4s1
-4;-2;-1  1;2;3;4;5;6
7S3
chromium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
36Ar, 38Ar, 40Ar.
Naturally occurring stable isotopes:
50Cr, 52Cr, 53Cr, 54Cr.

Chemical Properties: Ionization Energies and electron affinity

0
N/A
0 kJ/mol
1520.6, 2665.8, 3931, 5771, 7238, 8781, 11995, 13842, 40760, 46186 kJ/mol
6
1.66
64.3 kJ/mol
652.9, 1590.6, 2987, 4743, 6702, 8744.9, 15455, 17820, 20190, 23580, 26130, 28750, 34230, 37066, 97510, 1.058×105, 1.143×105, 1.253×105, 1.347×105, 1.443×105, 1.577×105 kJ/mol

Physical Properties

1.784 g/l
22.392376681614

 

N/A
N/A
N/A
N/A


 

N/A
N/A
N/A

 

N/A
N/A
N/A

 

0.01772 W/(m K)
N/A

 

Diamagnetic
N/A
-6×10-9
-2.4×10-10
-1.07×10-8

 

1.000281

 

319 m/s
7.14 g/cm3
7.2823669467787

 

279 GPa
115 GPa
160 GPa
0.21


 

8.5 MPa
1060 MPa
1120 MPa

 

7.9×106 S/m
1.3×10-7 m Ω
N/A

 

94 W/(m K)
4.9×10-6 K-1

 

Antiferromagnetic
N/A
4.45×10-8
2.314×10-9
0.0003177

 

N/A

 

5940 m/s

Thermal Properties - Enthalpies and thermodynamics

-189.3 °C
-185.8 °C
150.87 K
N/A

 

1.18 kJ/mol
6.5 kJ/mol
N/A
1907 °C
2671 °C
N/A
N/A

 

20.5 kJ/mol
339 kJ/mol
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS7440-37-1
RTECSCF2300000
2.2
1951
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A
CAS7440-47-3
RTECSGB4200000
4.1
3089
N/A
1
N/A
2
1

 

400 °C
N/A