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Vanadium Roentgenium Comparison

Vanadium
Roentgenium
Roentgenium Vanadium comparison


Periodic Table
Symbol
V  
Rg  
Group Number
5  
13
11  
7
Period Number
4  
7  
Block
d block  
d block  
Element Family
Transition Metal  
-  
CAS Number
7440622  
27
54386242  
1
Space Group Name
Im_ 3m  
-  
Space Group Number
229.00  
2
194.00  
7
Facts
Interesting Facts
  • Vanadium is a highly reactive metal, hence it is not found free in nature.
  • Vanadium can be found in almost 65 different types of minerals.
  
Roentgenium is a highly unstable synthetic element.  
Sources
Found As a By-product, Found in Minerals, Mining, Ores of Minerals  
Synthetically Produced  
History
  
  
Who Discovered
Andrés Manuel del Río  
Gesellschaft für Schwerionenforschung  
Discovery
In 1801  
In 1994  
Abundance
  
  
Abundance In Universe
0.00 %  
11
0.00 %  
40
Abundance In Sun
0.00 %  
13
-  
Abundance In Meteorites
0.01 %  
14
-  
Abundance In Earth's Crust
0.02 %  
12
-  
Abundance In Oceans
0.00 %  
14
-  
Abundance In Humans
0.00 %  
19
-  
Uses
Uses & Benefits
  • Its ally with steel is used very tough and hence it is used in armor plates, axles, piston rods, tools and crankshafts.
  • Its oxide is used as pigments for glass and ceramics.
  
  • Currently known uses of Roentgenium metal are limited to research purpose only.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry  
-  
Medical Uses
-  
-  
Other Uses
Alloys  
Research Purposes  
Biological Properties
  
  
Toxicity
Toxic  
-  
Present in Human Body
Yes  
No  
In Blood
0.00 Blood/mg dm-3  
39
0.00 Blood/mg dm-3  
40
In Bone
0.00 p.p.m.  
36
0.00 p.p.m.  
99+
Physical
Melting Point
1,890.00 °C  
13
-  
Boiling Point
3,380.00 °C  
21
2,800.00 °C  
38
Appearance
  
  
Physical State
Solid  
Solid  
Color
Blue-Silver Grey  
Silver  
Luster
Metallic  
Unknown Luster  
Hardness
  
  
Mohs Hardness
6.70  
4
-  
Brinell Hardness
600.00 MPa  
24
700.00 MPa  
17
Vickers Hardness
628.00 MPa  
25
450.00 MPa  
38
Speed of Sound
4,560.00 m/s  
22
3,430.00 m/s  
32
Optical Properties
  
  
Refractive Index
2.05  
13
1.30  
99+
Reflectivity
61.00 %  
22
64.00 %  
19
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
V  
Rg  
Isotopes
  
  
Known Isotopes
22  
17
1  
34
Electronegativity
  
  
Pauling Electronegativity
1.63  
21
0.00  
99+
Sanderson Electronegativity
1.39  
21
1.90  
13
Allred Rochow Electronegativity
1.45  
17
1.30  
25
Mulliken-Jaffe Electronegativity
1.63  
21
0.90  
99+
Allen Electronegativity
1.53  
29
0.80  
99+
Electropositivity
  
  
Pauling Electropositivity
2.37  
34
2.20  
39
Ionization Energies
  
  
1st Energy Level
650.90 kJ/mol  
99+
1,022.70 kJ/mol  
3
2nd Energy Level
1,414.00 kJ/mol  
99+
2,074.40 kJ/mol  
10
3rd Energy Level
2,830.00 kJ/mol  
36
3,077.90 kJ/mol  
24
4th Energy Level
4,507.00 kJ/mol  
35
4,052.40 kJ/mol  
99+
5th Energy Level
6,298.70 kJ/mol  
38
5,306.70 kJ/mol  
99+
6th Energy Level
12,363.00 kJ/mol  
6
11,100.00 kJ/mol  
10
7th Energy level
14,530.00 kJ/mol  
5
5,800.00 kJ/mol  
99+
8th Energy Level
16,730.00 kJ/mol  
7
5,800.00 kJ/mol  
99+
9th Energy Level
19,860.00 kJ/mol  
7
5,650.00 kJ/mol  
99+
10th Energy Level
22,240.00 kJ/mol  
12
5,800.00 kJ/mol  
99+
11th Energy Level
24,670.00 kJ/mol  
15
8,300.00 kJ/mol  
24
12th Energy Level
29,730.00 kJ/mol  
34
8,300.00 kJ/mol  
99+
13th Energy Level
32,446.00 kJ/mol  
12
8,700.00 kJ/mol  
16
14th Energy Level
86,450.00 kJ/mol  
1
8,300.00 kJ/mol  
16
15th Energy Level
94,170.00 kJ/mol  
3
87,000.00 kJ/mol  
9
16th Energy Level
102,300.00 kJ/mol  
3
83,000.00 kJ/mol  
11
17th Energy Level
112,700.00 kJ/mol  
4
830.80 kJ/mol  
30
18th Energy Level
121,600.00 kJ/mol  
5
8,300.00 kJ/mol  
19
19th Energy Level
130,700.00 kJ/mol  
6
580.00 kJ/mol  
99+
20th Energy Level
143,400.00 kJ/mol  
8
580.00 kJ/mol  
99+
21st Energy Level
151,440.00 kJ/mol  
8
5,800.00 kJ/mol  
21
22nd Energy Level
650.00 kJ/mol  
32
580.00 kJ/mol  
99+
23rd Energy Level
650.90 kJ/mol  
99+
5,800.00 kJ/mol  
21
24th Energy Level
650.90 kJ/mol  
34
538.70 kJ/mol  
99+
25th Energy Level
650.90 kJ/mol  
36
0.00 kJ/mol  
99+
26th Energy Level
650.90 kJ/mol  
35
580.00 kJ/mol  
99+
27th Energy Level
650.90 kJ/mol  
36
580.00 kJ/mol  
99+
28th Energy Level
650.90 kJ/mol  
99+
880.00 kJ/mol  
8
29th Energy Level
650.90 kJ/mol  
99+
580.00 kJ/mol  
99+
30th Energy Level
650.90 kJ/mol  
38
0.00 kJ/mol  
99+
Electrochemical Equivalent
0.38 g/amp-hr  
99+
3.10 g/amp-hr  
18
Electron Work Function
4.30 eV  
25
4.90 eV  
12
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes  
-  
Atomic
Atomic Number
23  
99+
111  
7
Electron Configuration
[Ar] 3d3 4s2  
[Rn] 5f14 6d9 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
23  
99+
111  
7
Number of Neutrons
28  
99+
161  
4
Number of Electrons
23  
99+
111  
7
Radius of an Atom
  
  
Atomic Radius
134.00 pm  
99+
200.00 pm  
7
Covalent Radius
153.00 pm  
35
126.00 pm  
99+
Van der Waals Radius
200.00 pm  
35
280.00 pm  
6
Atomic Weight
50.94 amu  
99+
281.00 amu  
6
Atomic Volume
8.78 cm3/mol  
99+
28.70 cm3/mol  
12
Adjacent Atomic Numbers
  
  
Previous Element
Titanium
  
Darmstadtium
  
Next Element
Chromium
  
Copernicium
  
Valence Electron Potential
120.00 (-eV)  
6
11.90 (-eV)  
99+
Lattice Constant
303.00 pm  
99+
0.00 pm  
99+
Lattice Angles
π/2, π/2, π/2  
-  
Lattice C/A Ratio
1.70  
9
1.90  
1
Mechanical
Density
  
  
Density At Room Temperature
6.00 g/cm3  
99+
28.70 g/cm3  
6
Density When Liquid (at m.p.)
5.50 g/cm3  
99+
28.70 g/cm3  
7
Tensile Strength
800.00 MPa  
6
65.00 MPa  
33
Viscosity
0.00  
11
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.23 (Pa)  
16
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
47.00 GPa  
16
26.00 GPa  
36
Bulk Modulus
160.00 GPa  
11
0.00 GPa  
99+
Young's Modulus
128.00 GPa  
17
12.70 GPa  
99+
Poisson Ratio
0.37  
7
0.30  
14
Other Mechanical Properties
Ductile, Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
5.96  
99+
28.70  
8
Magnetic Ordering
Paramagnetic  
-  
Permeability
0.00 H/m  
15
0.00 H/m  
12
Susceptibility
0.00  
8
0.00  
24
Electrical Properties
  
  
Electrical Property
Superconductor  
-  
Resistivity
197.00 nΩ·m  
19
0.20 nΩ·m  
99+
Electrical Conductivity
0.05 106/cm Ω  
40
0.00 106/cm Ω  
99+
Electron Affinity
50.60 kJ/mol  
25
50.00 kJ/mol  
26
Thermal
Specific Heat
0.49 J/(kg K)  
10
0.13 J/(kg K)  
40
Molar Heat Capacity
24.89 J/mol·K  
99+
23.70 J/mol·K  
99+
Thermal Conductivity
30.70 W/m·K  
40
0.10 W/m·K  
99+
Critical Temperature
2,183.00 K  
15
1,100.00 K  
99+
Thermal Expansion
8.40 µm/(m·K)  
99+
12.60 µm/(m·K)  
40
Enthalpy
  
  
Enthalpy of Vaporization
458.60 kJ/mol  
19
580.00 kJ/mol  
12
Enthalpy of Fusion
17.57 kJ/mol  
14
-  
Enthalpy of Atomization
514.60 kJ/mol  
17
580.00 kJ/mol  
14
Standard Molar Entropy
28.90 J/mol.K  
99+
57.00 J/mol.K  
30
Summary >>
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