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Vanadium vs Praseodymium

Vanadium
Praseodymium
Praseodymium vs Vanadium


Periodic Table
Symbol
V   
Pr   
Group Number
5   
13
Not Available   
Period Number
4   
6   
Block
d block   
f block   
Element Family
Transition Metal   
Lanthanide   
CAS Number
7440622   
27
7440100   
99+
Space Group Name
Im_ 3m   
P63/mmc   
Space Group Number
229.00   
1
194.00   
5
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.
  
  • Praseodymium metal is synthetically produced metal.
  • Praseodymium is used as possible fuel for radioactive generators.
  
Sources
Found As a By-product, Found in Minerals, Mining, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Andrés Manuel del Río   
Not Available   
Discovery
In 1801   
In 1885   
Abundance
  
  
Abundance In Universe
1 * 10-4 %   
10
2 * 10-7 %   
22
Abundance In Sun
~0.00004 %   
13
~0.0000001 %   
26
Abundance In Meteorites
0.01 %   
14
0.00 %   
40
Abundance In Earth's Crust
0.02 %   
12
0.00 %   
27
Abundance In Oceans
0.00 %   
14
0.00 %   
39
Abundance In Humans
0.00 %   
16
Not Available   
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.
  
  • The main use of Praseodymium include alloys. Praseodymium –Magnesium alloy is used in aircraft engines due to its high strength.
  • This metal is also used while making a permanent magnets.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry   
Chemical Industry   
Medical Uses
NA   
NA   
Other Uses
Alloys   
Alloys   
Biological Properties
  
  
Toxicity
Toxic   
Moderately Toxic   
Present in Human Body
Yes   
No   
In Blood
0.00 Blood/mg dm-3   
36
Not Available   
In Bone
0.00 p.p.m.   
31
Not Available   
Physical Properties
Melting Point
1,890.00 °C   
13
935.00 °C   
99+
Boiling Point
3,380.00 °C   
20
3,130.00 °C   
27
Appearance
  
  
Physical State
Solid   
Solid   
Color
Blue-Silver Grey   
Grayish White   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
6.70   
4
Not Available   
Brinell Hardness
600.00 MPa   
20
481.00 MPa   
24
Vickers Hardness
628.00 MPa   
17
400.00 MPa   
25
Speed of Sound
4,560.00 m/s   
17
2,280.00 m/s   
40
Optical Properties
  
  
Reflectivity
61.00 %   
14
Not Available   
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   
Pr   
Isotopes
  
  
Known Isotopes
22   
17
31   
8
Electronegativity
  
  
Pauling Electronegativity
1.63   
20
1.13   
99+
Sanderson Electronegativity
1.39   
17
Not Available   
Allred Rochow Electronegativity
1.45   
16
1.07   
32
Allen Electronegativity
1.53   
26
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.37   
34
2.87   
12
Ionization Energies
  
  
1st Energy Level
650.90 kJ/mol   
99+
527.00 kJ/mol   
99+
2nd Energy Level
1,414.00 kJ/mol   
99+
1,020.00 kJ/mol   
99+
3rd Energy Level
2,830.00 kJ/mol   
35
2,086.00 kJ/mol   
99+
4th Energy Level
4,507.00 kJ/mol   
25
3,761.00 kJ/mol   
99+
5th Energy Level
6,298.70 kJ/mol   
23
5,551.00 kJ/mol   
29
6th Energy Level
12,363.00 kJ/mol   
5
Not Available   
7th Energy level
14,530.00 kJ/mol   
5
Not Available   
8th Energy Level
16,730.00 kJ/mol   
7
Not Available   
9th Energy Level
19,860.00 kJ/mol   
7
Not Available   
10th Energy Level
22,240.00 kJ/mol   
12
Not Available   
11th Energy Level
24,670.00 kJ/mol   
15
Not Available   
12th Energy Level
29,730.00 kJ/mol   
12
Not Available   
13th Energy Level
32,446.00 kJ/mol   
12
Not Available   
14th Energy Level
86,450.00 kJ/mol   
1
Not Available   
15th Energy Level
94,170.00 kJ/mol   
2
Not Available   
16th Energy Level
102,300.00 kJ/mol   
3
Not Available   
17th Energy Level
112,700.00 kJ/mol   
4
Not Available   
18th Energy Level
121,600.00 kJ/mol   
5
Not Available   
19th Energy Level
130,700.00 kJ/mol   
6
Not Available   
20th Energy Level
143,400.00 kJ/mol   
8
Not Available   
21st Energy Level
151,440.00 kJ/mol   
8
Not Available   
Electrochemical Equivalent
0.38 g/amp-hr   
99+
1.75 g/amp-hr   
40
Electron Work Function
4.30 eV   
18
2.70 eV   
99+
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes   
Anti Corrosion, Ionization, Radioactive Isotopes   
Atomic Properties
Atomic Number
23   
99+
59   
99+
Electron Configuration
[Ar] 3d3 4s2   
[Xe] 4f3 6s2   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Praseodymium.jpg#100   
Atom
  
  
Number of Protons
23   
99+
59   
99+
Number of Neutrons
28   
99+
82   
99+
Number of Electrons
23   
99+
59   
99+
Radius of an Atom
  
  
Atomic Radius
134.00 pm   
99+
182.00 pm   
11
Covalent Radius
153.00 pm   
33
203.00 pm   
9
Van der Waals Radius
200.00 pm   
28
239.00 pm   
14
Atomic Weight
50.94 amu   
99+
140.91 amu   
99+
Atomic Volume
8.78 cm3/mol   
99+
20.80 cm3/mol   
15
Adjacent Atomic Numbers
  
  
Previous Element
Titanium
  
Cerium
  
Next Element
Chromium
  
Neodymium
  
Valence Electron Potential
120.00 (-eV)   
6
42.64 (-eV)   
99+
Lattice Constant
303.00 pm   
99+
367.25 pm   
29
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.61   
4
Mechanical Properties
Density
  
  
Density At Room Temperature
6.00 g/cm3   
99+
6.77 g/cm3   
99+
Density When Liquid (at m.p.)
5.50 g/cm3   
99+
6.50 g/cm3   
39
Tensile Strength
800.00 MPa   
6
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
25
Vapor Pressure at 2000 K
0.23 (Pa)   
16
13.20 (Pa)   
7
Elasticity properties
  
  
Shear Modulus
47.00 GPa   
16
14.80 GPa   
39
Bulk Modulus
160.00 GPa   
11
28.80 GPa   
40
Young's Modulus
128.00 GPa   
15
37.30 GPa   
99+
Poisson Ratio
0.37   
7
0.28   
16
Other Mechanical Properties
Ductile, Malleable   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
5.96   
99+
6.77   
99+
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Superconductor   
Conductor   
Resistivity
197.00 nΩ·m   
19
0.70 nΩ·m   
99+
Electrical Conductivity
0.05 106/cm Ω   
35
0.01 106/cm Ω   
99+
Electron Affinity
50.60 kJ/mol   
20
50.00 kJ/mol   
21
Thermal Properties
Specific Heat
0.49 J/(kg K)   
10
0.19 J/(kg K)   
32
Molar Heat Capacity
24.89 J/mol·K   
99+
27.20 J/mol·K   
18
Thermal Conductivity
30.70 W/m·K   
39
12.50 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
8.40 µm/(m·K)   
99+
6.70 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
458.60 kJ/mol   
14
296.80 kJ/mol   
29
Enthalpy of Fusion
17.57 kJ/mol   
14
6.89 kJ/mol   
99+
Enthalpy of Atomization
514.60 kJ/mol   
13
368.00 kJ/mol   
24
Standard Molar Entropy
28.90 J/mol.K   
99+
73.20 J/mol.K   
10
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