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Chromium vs Seaborgium

Chromium
Seaborgium
Seaborgium vs Chromium


Periodic Table
Symbol
Cr   
Sg   
Group Number
6   
12
6   
12
Period Number
4   
7   
Block
d block   
d block   
Element Family
Transition Metal   
Transition Metal   
CAS Number
7440473   
39
54038812   
9
Space Group Name
Im_ 3m   
Not Available   
Space Group Number
229.00   
1
Not Available   
Facts
Interesting Facts
  • Chromium is highly reactive, hence it is not found free in nature.
  • Ores of Chromites mineral are the major source of Chromium metal.
  • Almost 90% leather tanning is done with the help of chromium.
  
  • Seaborgium most stable isotope is Sg and it has 2.1 min of half- life.
  • And other isotopes of Seaborgium have half-lives as short as 3 ms.
  
Sources
Found in Minerals, Mining, Ores of metals, Ores of Minerals   
Synthetically Produced   
History
  
  
Who Discovered
Louis Nicolas Vauquelin   
Lawrence Berkeley National Laboratory   
Discovery
In Between 1797 - 1798   
In 1974   
Abundance
  
  
Abundance In Universe
1.5 * 10-3 %   
7
Not Available   
Abundance In Sun
~0.002 %   
7
~-9999 %   
Abundance In Meteorites
0.30 %   
7
Not Available   
Abundance In Earth's Crust
0.01 %   
13
Not Available   
Abundance In Oceans
0.00 %   
16
Not Available   
Abundance In Humans
0.00 %   
16
Not Available   
Uses
Uses & Benefits
  • It is used to harden the steel and produces a stainless steel and other various alloys.
  • It is also used to give proper finish to polished mirrors. Its chromium plates are used in bathroom fittings.
  
  • Currently known uses of Seaborgium metal are limited to research purpose only.
  
Industrial Uses
Automobile Industry, Chemical Industry   
NA   
Medical Uses
NA   
NA   
Other Uses
Alloys   
Research Purposes   
Biological Properties
  
  
Toxicity
Highly Toxic   
Unknown   
Present in Human Body
Yes   
No   
In Blood
0.11 Blood/mg dm-3   
12
Not Available   
In Bone
0.33 p.p.m.   
21
Not Available   
Physical Properties
Melting Point
1,857.00 °C   
14
Not Available   
Boiling Point
2,672.00 °C   
39
Not Available   
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silver   
Unknown   
Luster
Metallic   
Unknown Luster   
Hardness
  
  
Mohs Hardness
8.50   
1
Not Available   
Brinell Hardness
687.00 MPa   
16
Not Available   
Vickers Hardness
1,060.00 MPa   
10
Not Available   
Speed of Sound
5,940.00 m/s   
5
Not Available   
Optical Properties
  
  
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
Cr   
Sg   
Isotopes
  
  
Known Isotopes
21   
18
9   
29
Electronegativity
  
  
Pauling Electronegativity
1.66   
18
Not Available   
Sanderson Electronegativity
1.66   
14
Not Available   
Allred Rochow Electronegativity
1.56   
10
Not Available   
Allen Electronegativity
1.65   
19
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.34   
36
Not Available   
Ionization Energies
  
  
1st Energy Level
26,130.00 kJ/mol   
1
757.40 kJ/mol   
21
2nd Energy Level
28,750.00 kJ/mol   
1
1,732.90 kJ/mol   
28
3rd Energy Level
34,230.00 kJ/mol   
1
2,483.50 kJ/mol   
99+
4th Energy Level
37,066.00 kJ/mol   
1
3,415.60 kJ/mol   
99+
5th Energy Level
97,510.00 kJ/mol   
1
4,561.80 kJ/mol   
38
6th Energy Level
105,800.00 kJ/mol   
1
5,715.80 kJ/mol   
25
7th Energy level
114,300.00 kJ/mol   
1
Not Available   
8th Energy Level
125,300.00 kJ/mol   
1
Not Available   
9th Energy Level
134,700.00 kJ/mol   
1
Not Available   
10th Energy Level
144,300.00 kJ/mol   
1
Not Available   
11th Energy Level
26,130.00 kJ/mol   
12
Not Available   
12th Energy Level
28,750.00 kJ/mol   
13
Not Available   
13th Energy Level
34,230.00 kJ/mol   
10
Not Available   
14th Energy Level
37,066.00 kJ/mol   
12
Not Available   
15th Energy Level
97,510.00 kJ/mol   
1
Not Available   
16th Energy Level
105,800.00 kJ/mol   
2
Not Available   
17th Energy Level
114,300.00 kJ/mol   
3
Not Available   
18th Energy Level
125,300.00 kJ/mol   
4
Not Available   
19th Energy Level
134,700.00 kJ/mol   
5
Not Available   
20th Energy Level
144,300.00 kJ/mol   
7
Not Available   
21st Energy Level
157,700.00 kJ/mol   
7
Not Available   
22nd Energy Level
166,090.00 kJ/mol   
6
Not Available   
Electrochemical Equivalent
0.32 g/amp-hr   
99+
Not Available   
Electron Work Function
4.50 eV   
14
Not Available   
Other Chemical Properties
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes, Solubility   
NA   
Atomic Properties
Atomic Number
24   
99+
106   
12
Electron Configuration
[Ar] 3d5 4s1   
[Rn] 5f14 6d2 7s2   
Crystal Structure
Body Centered Cubic (BCC)   
Body Centered Cubic (BCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
24   
99+
106   
12
Number of Neutrons
28   
99+
157   
7
Number of Electrons
24   
99+
106   
12
Radius of an Atom
  
  
Atomic Radius
128.00 pm   
99+
132.00 pm   
99+
Covalent Radius
139.00 pm   
99+
143.00 pm   
99+
Van der Waals Radius
200.00 pm   
28
Not Available   
Atomic Weight
52.00 amu   
99+
269.00 amu   
9
Atomic Volume
7.23 cm3/mol   
99+
Not Available   
Adjacent Atomic Numbers
  
  
Previous Element
Vanadium
  
Dubnium
  
Next Element
Manganese
  
Bohrium
  
Valence Electron Potential
170.00 (-eV)   
4
Not Available   
Lattice Constant
291.00 pm   
99+
Not Available   
Lattice Angles
π/2, π/2, π/2   
Unknown   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
7.19 g/cm3   
99+
35.00 g/cm3   
4
Density When Liquid (at m.p.)
6.30 g/cm3   
40
Not Available   
Tensile Strength
689.00 MPa   
7
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)   
24
Not Available   
Vapor Pressure at 2000 K
774.00 (Pa)   
1
Not Available   
Elasticity properties
  
  
Shear Modulus
115.00 GPa   
9
Not Available   
Bulk Modulus
160.00 GPa   
11
Not Available   
Young's Modulus
279.00 GPa   
8
Not Available   
Poisson Ratio
0.21   
32
Not Available   
Other Mechanical Properties
NA   
Unknown   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
7.19   
99+
Not Available   
Magnetic Ordering
Antiferromagnetic   
Unknown   
Electrical Properties
  
  
Electrical Property
NA   
Unknown   
Resistivity
125.00 nΩ·m   
27
Not Available   
Electrical Conductivity
0.08 106/cm Ω   
25
Not Available   
Electron Affinity
64.30 kJ/mol   
15
Not Available   
Thermal Properties
Specific Heat
0.45 J/(kg K)   
12
Not Available   
Molar Heat Capacity
23.35 J/mol·K   
99+
Not Available   
Thermal Conductivity
93.90 W/m·K   
17
Not Available   
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
4.90 µm/(m·K)   
99+
Not Available   
Enthalpy
  
  
Enthalpy of Vaporization
348.80 kJ/mol   
24
Not Available   
Enthalpy of Fusion
15.31 kJ/mol   
20
Not Available   
Enthalpy of Atomization
397.50 kJ/mol   
21
Not Available   
Standard Molar Entropy
23.80 J/mol.K   
99+
Not Available   
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