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Properties of Vanadium and Rhodium

Vanadium
Rhodium
Properties of Rhodium & Vanadium


Physical Properties
Melting Point
1,890.00 °C   
13
1,966.00 °C   
12
Boiling Point
3,380.00 °C   
20
3,727.00 °C   
17
Hardness
  
  
Mohs Hardness
6.70   
4
6.00   
6
Brinell Hardness
600.00 MPa   
20
980.00 MPa   
9
Vickers Hardness
628.00 MPa   
17
1,100.00 MPa   
9
Optical Properties
  
  
Refractive Index
Not Available   
Not Available   
Reflectivity
61.00 %   
14
84.00 %   
4
Speed of Sound
4,560.00 m/s   
17
4,700.00 m/s   
15
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
V   
Rh   
Isotopes
  
  
Known Isotopes
22   
17
16   
23
Electronegativity
  
  
Pauling Electronegativity
1.63   
20
2.28   
3
Sanderson Electronegativity
1.39   
17
Not Available   
Allred Rochow Electronegativity
1.45   
16
1.45   
16
Mulliken-Jaffe Electronegativity
Not Available   
Not Available   
Allen Electronegativity
1.53   
26
1.56   
24
Electropositivity
  
  
Pauling Electropositivity
2.37   
34
1.72   
99+
Ionization Energies
  
  
1st Energy Level
650.90 kJ/mol   
99+
719.70 kJ/mol   
29
2nd Energy Level
1,414.00 kJ/mol   
99+
1,740.00 kJ/mol   
26
3rd Energy Level
2,830.00 kJ/mol   
35
2,997.00 kJ/mol   
27
Electrochemical Equivalent
0.38 g/amp-hr   
99+
1.28 g/amp-hr   
99+
Electron Work Function
4.30 eV   
18
4.98 eV   
6
Other Chemical Properties
?
Anti-corrosion metals have the protection on their surfaces which protect them from corroding in corrosive environments.Anti Corrosion, 
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes   
?
Anti-corrosion metals have the protection on their surfaces which protect them from corroding in corrosive environments.Anti Corrosion, 
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes   
Mechanical Properties
Density
  
  
Density At Room Temperature
6.00 g/cm3   
99+
12.41 g/cm3   
28
Density When Liquid (at m.p.)
5.50 g/cm3   
99+
10.70 g/cm3   
14
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
Not Available   
Vapor Pressure at 2000 K
0.23 (Pa)   
16
0.02 (Pa)   
19
Tensile Strength
800.00 MPa   
6
951.00 MPa   
5
Viscosity
Not Available   
Not Available   
Elasticity properties
  
  
Shear Modulus
47.00 GPa   
16
150.00 GPa   
6
Bulk Modulus
160.00 GPa   
11
275.00 GPa   
5
Young's Modulus
128.00 GPa   
15
380.00 GPa   
5
Poisson Ratio
0.37   
7
0.26   
22
Other Mechanical Properties
?
Ductility of metals defines their ability to deform under tensile stress; this is often characterized by the metals ability to be stretched into a wire.Ductile, 
?
Malleability of metals defines their ability to deform under compressive stress; this is often characterized by the metals ability to form a thin sheet by hammering or rolling.Malleable   
?
Malleability of metals defines their ability to deform under compressive stress; this is often characterized by the metals ability to form a thin sheet by hammering or rolling.Malleable   
Periodic Table
Symbol
V   
Rh   
Group Number
5   
13
9   
9
Period Number
4   
5   
Block
?
The d-block is on the middle of the periodic table and includes elements from columns 3 through 12. These elements are also known as the transition metals because they show a transitivity in their properties i.e. they show a trend in their properties.d block   
?
The d-block is on the middle of the periodic table and includes elements from columns 3 through 12. These elements are also known as the transition metals because they show a transitivity in their properties i.e. they show a trend in their properties.d block   
Element Family
?
What is Transition Metal? All transition metals are placed under the d-block from group number 3 to 12. Transition metals show characteristics like malleability, ductility and are good conductor of electricity.Transition Metal   
?
What is Transition Metal? All transition metals are placed under the d-block from group number 3 to 12. Transition metals show characteristics like malleability, ductility and are good conductor of electricity.Transition Metal   
Atomic Properties
Atomic Number
23   
99+
45   
99+
Atomic Weight
50.94 amu   
99+
102.91 amu   
99+
Atomic Volume
8.78 cm3/mol   
99+
8.30 cm3/mol   
99+
Electron Configuration
[Ar] 3d3 4s2   
[Kr] 4d8 5s1   
Valence Electron Potential
120.00 (-eV)   
6
64.00 (-eV)   
22
Atom
  
  
Number of Protons
23   
99+
45   
99+
Number of Neutrons
28   
99+
58   
99+
Number of Electrons
23   
99+
45   
99+
Crystal Structure
?
BCC is a basis type of cubic crystal structure. In crystallography, the cubic crystals structure is a crystal system where the unit cell has a cube shaped structure. This is one of the simplest crystal structure found in crystals of metal.Body Centered Cubic (BCC)   
?
In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in crystals and minerals.Face Centered Cubic (FCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
FCC-Crystal-Structure-of-Rhodium.jpg#100   
Radius of an Atom
  
  
Atomic Radius
134.00 pm   
99+
134.00 pm   
99+
Covalent Radius
153.00 pm   
33
142.00 pm   
99+
Van der Waals Radius
200.00 pm   
28
200.00 pm   
28
Lattice Constant
303.00 pm   
99+
380.34 pm   
27
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Chromium
  
Palladium
  
Previous Element
Titanium
  
Ruthenium
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
197.00 nΩ·m   
19
43.30 nΩ·m   
99+
Electrical Conductivity
0.05 106/cm Ω   
35
0.21 106/cm Ω   
8
Electron Affinity
50.60 kJ/mol   
20
109.70 kJ/mol   
7
Electrical Property
?
Under certain conditions, superconductor metals offer zero resistance to electric current it means this type of metals will conduct electricity without any resistance.Superconductor   
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor   
Magnetic Characteristics
  
  
Specific Gravity
5.96   
99+
12.41   
20
Magnetic Ordering
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic   
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic   
Permeability
Not Available   
Not Available   
Susceptibility
Not Available   
Not Available   
Thermal Properties
Specific Heat
0.49 J/(kg K)   
10
0.24 J/(kg K)   
22
Thermal Conductivity
30.70 W/m·K   
39
150.00 W/m·K   
9
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
24.89 J/mol·K   
99+
24.98 J/mol·K   
99+
Thermal Expansion
8.40 µm/(m·K)   
99+
8.20 µm/(m·K)   
99+
Standard Molar Entropy
28.90 J/mol.K   
99+
31.50 J/mol.K   
99+
Enthalpy
  
  
Enthalpy of Vaporization
458.60 kJ/mol   
14
495.40 kJ/mol   
12
Enthalpy of Fusion
17.57 kJ/mol   
14
21.76 kJ/mol   
10
Enthalpy of Atomization
514.60 kJ/mol   
13
556.50 kJ/mol   
12
All >>
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