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Vanadium vs Mendelevium

Vanadium
Mendelevium
Mendelevium vs Vanadium


Periodic Table
Symbol
V  
Md  
Group Number
5  
13
3  
15
Period Number
4  
7  
Block
d block  
f block  
Element Family
Transition Metal  
Actinide  
CAS Number
7440622  
27
7440111  
99+
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.
  
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
  
Sources
Found As a By-product, Found in Minerals, Mining, Ores of Minerals  
Bombarding Einsteinium with Helium Ions  
History
  
  
Who Discovered
Andrés Manuel del Río  
Lawrence Berkeley National Laboratory  
Discovery
In 1801  
In 1955  
Abundance
  
  
Abundance In Universe
0.00 %  
11
0.00 %  
40
Abundance In Sun
0.00 %  
13
-  
Abundance In Meteorites
0.01 %  
14
0.00 %  
99+
Abundance In Earth's Crust
0.02 %  
12
-  
Abundance In Oceans
0.00 %  
14
-  
Abundance In Humans
0.00 %  
19
0.00 %  
24
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 Mendelevium metal are limited to research purpose only.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry  
-  
Medical Uses
-  
-  
Other Uses
Alloys  
-  
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
827.00 °C  
99+
Boiling Point
3,380.00 °C  
21
0.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Blue-Silver Grey  
-  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
6.70  
4
-  
Brinell Hardness
600.00 MPa  
24
350.00 MPa  
36
Vickers Hardness
628.00 MPa  
25
0.00 MPa  
99+
Speed of Sound
4,560.00 m/s  
22
2,680.00 m/s  
99+
Optical Properties
  
  
Refractive Index
2.05  
13
1.30  
99+
Reflectivity
61.00 %  
22
66.00 %  
17
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
V  
Md  
Isotopes
  
  
Known Isotopes
22  
17
16  
23
Electronegativity
  
  
Pauling Electronegativity
1.63  
21
1.30  
33
Sanderson Electronegativity
1.39  
21
1.30  
25
Allred Rochow Electronegativity
1.45  
17
1.20  
28
Mulliken-Jaffe Electronegativity
1.63  
21
1.30  
33
Allen Electronegativity
1.53  
29
1.30  
40
Electropositivity
  
  
Pauling Electropositivity
2.37  
34
2.70  
22
Ionization Energies
  
  
1st Energy Level
650.90 kJ/mol  
99+
635.00 kJ/mol  
99+
2nd Energy Level
1,414.00 kJ/mol  
99+
1,235.00 kJ/mol  
99+
3rd Energy Level
2,830.00 kJ/mol  
36
2,470.00 kJ/mol  
99+
4th Energy Level
4,507.00 kJ/mol  
35
3,840.00 kJ/mol  
99+
5th Energy Level
6,298.70 kJ/mol  
38
6,350.00 kJ/mol  
36
6th Energy Level
12,363.00 kJ/mol  
6
6,350.00 kJ/mol  
99+
7th Energy level
14,530.00 kJ/mol  
5
6,350.00 kJ/mol  
99+
8th Energy Level
16,730.00 kJ/mol  
7
6,350.00 kJ/mol  
99+
9th Energy Level
19,860.00 kJ/mol  
7
6,350.00 kJ/mol  
99+
10th Energy Level
22,240.00 kJ/mol  
12
6,350.00 kJ/mol  
99+
11th Energy Level
24,670.00 kJ/mol  
15
6,400.00 kJ/mol  
99+
12th Energy Level
29,730.00 kJ/mol  
34
60,100.00 kJ/mol  
16
13th Energy Level
32,446.00 kJ/mol  
12
6,350.00 kJ/mol  
37
14th Energy Level
86,450.00 kJ/mol  
1
1,150.00 kJ/mol  
99+
15th Energy Level
94,170.00 kJ/mol  
3
63,500.00 kJ/mol  
37
16th Energy Level
102,300.00 kJ/mol  
3
635.00 kJ/mol  
99+
17th Energy Level
112,700.00 kJ/mol  
4
1,107.00 kJ/mol  
21
18th Energy Level
121,600.00 kJ/mol  
5
6,350.00 kJ/mol  
39
19th Energy Level
130,700.00 kJ/mol  
6
635.00 kJ/mol  
99+
20th Energy Level
143,400.00 kJ/mol  
8
635.00 kJ/mol  
40
21st Energy Level
151,440.00 kJ/mol  
8
6,350.00 kJ/mol  
13
22nd Energy Level
650.00 kJ/mol  
32
635.00 kJ/mol  
34
23rd Energy Level
650.90 kJ/mol  
99+
6,350.00 kJ/mol  
13
24th Energy Level
650.90 kJ/mol  
34
635.00 kJ/mol  
36
25th Energy Level
650.90 kJ/mol  
36
635.00 kJ/mol  
38
26th Energy Level
650.90 kJ/mol  
35
635.00 kJ/mol  
37
27th Energy Level
650.90 kJ/mol  
36
635.00 kJ/mol  
39
28th Energy Level
650.90 kJ/mol  
99+
635.00 kJ/mol  
99+
29th Energy Level
650.90 kJ/mol  
99+
635.00 kJ/mol  
99+
30th Energy Level
650.90 kJ/mol  
38
635.00 kJ/mol  
40
Electrochemical Equivalent
0.38 g/amp-hr  
99+
3.21 g/amp-hr  
13
Electron Work Function
4.30 eV  
25
3.89 eV  
37
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes  
Ionization, Radioactive Isotopes, Radioactivity  
Atomic
Atomic Number
23  
99+
101  
17
Electron Configuration
[Ar] 3d3 4s2  
[Rn] 5f13 7s2  
Crystal Structure
Body Centered Cubic (BCC)  
Not Known  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
Unknown-Crystal-Structure-of-Mendelevium.jpg#100  
Atom
  
  
Number of Protons
23  
99+
101  
17
Number of Neutrons
28  
99+
157  
8
Number of Electrons
23  
99+
101  
17
Radius of an Atom
  
  
Atomic Radius
134.00 pm  
99+
175.00 pm  
21
Covalent Radius
153.00 pm  
35
175.00 pm  
25
Van der Waals Radius
200.00 pm  
35
246.00 pm  
12
Atomic Weight
50.94 amu  
99+
258.00 amu  
14
Atomic Volume
8.78 cm3/mol  
99+
19.90 cm3/mol  
32
Adjacent Atomic Numbers
  
  
Previous Element
Titanium
  
Fermium
  
Next Element
Chromium
  
Nobelium
  
Valence Electron Potential
120.00 (-eV)  
6
63.70 (-eV)  
23
Lattice Constant
303.00 pm  
99+
-  
Lattice Angles
π/2, π/2, π/2  
-  
Lattice C/A Ratio
1.70  
9
1.58  
36
Mechanical
Density
  
  
Density At Room Temperature
6.00 g/cm3  
99+
10.30 g/cm3  
38
Density When Liquid (at m.p.)
5.50 g/cm3  
99+
10.30 g/cm3  
39
Tensile Strength
800.00 MPa  
6
80.00 MPa  
29
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)  
37
Elasticity properties
  
  
Shear Modulus
47.00 GPa  
16
32.00 GPa  
24
Bulk Modulus
160.00 GPa  
11
0.00 GPa  
99+
Young's Modulus
128.00 GPa  
17
12.00 GPa  
99+
Poisson Ratio
0.37  
7
0.30  
14
Other Mechanical Properties
Ductile, Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
5.96  
99+
13.50  
29
Magnetic Ordering
Paramagnetic  
-  
Permeability
0.00 H/m  
15
0.00 H/m  
11
Susceptibility
0.00  
8
0.00  
24
Electrical Properties
  
  
Electrical Property
Superconductor  
-  
Resistivity
197.00 nΩ·m  
19
0.63 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
0.10 J/(kg K)  
99+
Molar Heat Capacity
24.89 J/mol·K  
99+
27.00 J/mol·K  
29
Thermal Conductivity
30.70 W/m·K  
40
0.00 W/m·K  
99+
Critical Temperature
2,183.00 K  
15
1,100.00 K  
99+
Thermal Expansion
8.40 µm/(m·K)  
99+
11.60 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
458.60 kJ/mol  
19
380.50 kJ/mol  
26
Enthalpy of Fusion
17.57 kJ/mol  
14
-  
Enthalpy of Atomization
514.60 kJ/mol  
17
410.80 kJ/mol  
25
Standard Molar Entropy
28.90 J/mol.K  
99+
37.40 J/mol.K  
99+
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