1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
Transition Metal
Transition Metal
1.6 CAS Number
74404847439987
7429905
54386242
2.3 Space Group Name
2.4 Space Group Number
3 Facts
3.1 Interesting Facts
- The main source of Cobalt is as a by-product of copper and nickel metal mining.
- Cobalt metal can be obtained from other elements like Oxygen, Sulfur and Arsenic.
- It s also used in electroplating process as it exhibits anti cession properties.
- Molybdenum is highly reactive metal, hence not found free in nature .
- Till 18th century Molybdenum element were often mistaken as a carbon or Lead.
3.2 Sources
Found in Compounds, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Georg Brandt
Carl Wilhelm Scheele
3.3.2 Discovery
3.4 Abundance
3.4.1 Abundance In Universe
3 * 10-4 %5 * 10-7 %
5E-09
0.11
4.1.1 Abundance In Sun
~0.0004 %~0.0000009 %
1E-08
0.1
4.1.2 Abundance In Meteorites
4.2.1 Abundance In Earth's Crust
4.4.2 Abundance In Oceans
4.4.3 Abundance In Humans
5 Uses
5.1 Uses & Benefits
- Its alloys with aluminum and nickel are used to make powerful magnets.
-
Few other alloys exhibit high-temperature strength and hence they are used in Turbines of Jet and Gas engine.
- Its alloys are used to make engine parts, drills, saw blade, etc.
- Lubricant additive made up of Molybdenum disulfide is commonly used in the industry. It is also used as a catalyst.
5.1.1 Industrial Uses
Chemical Industry, Electrical Industry, Electronic Industry
Aerospace Industry, Electrical Industry, Electronic Industry
5.1.2 Medical Uses
Pharmaceutical Industry
NA
5.1.3 Other Uses
5.2 Biological Properties
5.2.1 Toxicity
5.2.2 Present in Human Body
5.2.3 In Blood
0.04 Blood/mg dm-30.00 Blood/mg dm-3
0
1970
5.2.5 In Bone
0.04 p.p.m.0.70 p.p.m.
0
170000
6 Physical
6.1 Melting Point
1,495.00 °C2,617.00 °C
27
3410
6.2 Boiling Point
2,870.00 °C4,612.00 °C
147
5660
6.4 Appearance
6.4.1 Physical State
6.4.2 Color
6.4.3 Luster
6.5 Hardness
6.5.1 Mohs Hardness
7.2.2 Brinell Hardness
470.00 MPa1,370.00 MPa
0.14
3490
7.3.2 Vickers Hardness
1,043.00 MPa1,400.00 MPa
121
3430
7.4 Speed of Sound
4,720.00 m/s5,400.00 m/s
818
16200
7.5 Optical Properties
7.5.1 Refractive Index
7.5.3 Reflectivity
7.6 Allotropes
7.6.1 α Allotropes
7.6.2 β Allotropes
7.6.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
8.2 Isotopes
8.2.1 Known Isotopes
8.3 Electronegativity
8.3.1 Pauling Electronegativity
8.3.3 Sanderson Electronegativity
8.4.2 Allred Rochow Electronegativity
8.5.2 Mulliken-Jaffe Electronegativity
8.5.4 Allen Electronegativity
8.6 Electropositivity
8.6.1 Pauling Electropositivity
8.7 Ionization Energies
8.7.2 1st Energy Level
760.40 kJ/mol684.30 kJ/mol
375.7
26130
8.7.3 2nd Energy Level
1,648.00 kJ/mol1,560.00 kJ/mol
710.2162
28750
8.7.5 3rd Energy Level
3,232.00 kJ/mol2,618.00 kJ/mol
1600
34230
8.7.7 4th Energy Level
4,950.00 kJ/mol4,480.00 kJ/mol
2780
37066
8.7.9 5th Energy Level
7,670.00 kJ/mol5,257.00 kJ/mol
4305.2
97510
8.7.11 6th Energy Level
9,840.00 kJ/mol6,640.80 kJ/mol
5715.8
105800
8.7.13 7th Energy level
12,440.00 kJ/mol12,125.00 kJ/mol
7226.8
114300
8.7.15 8th Energy Level
15,230.00 kJ/mol13,860.00 kJ/mol
8857.4
125300
8.7.16 9th Energy Level
17,959.00 kJ/mol15,835.00 kJ/mol
14110
134700
8.7.18 10th Energy Level
26,570.00 kJ/mol17,980.00 kJ/mol
17100
144300
8.7.20 11th Energy Level
29,400.00 kJ/mol20,190.00 kJ/mol
19900
169988
8.7.21 12th Energy Level
32,400.00 kJ/mol22,219.00 kJ/mol
22219
189368
8.7.23 13th Energy Level
36,600.00 kJ/mol26,930.00 kJ/mol
26930
76015
8.7.25 14th Energy Level
39,700.00 kJ/mol29,196.00 kJ/mol
29196
86450
8.7.26 15th Energy Level
42,800.00 kJ/mol52,490.00 kJ/mol
41987
97510
8.7.28 16th Energy Level
49,396.00 kJ/mol55,000.00 kJ/mol
47206
109480
8.7.30 17th Energy Level
52,737.00 kJ/mol61,400.00 kJ/mol
52737
122200
8.7.32 18th Energy Level
134,810.00 kJ/mol67,700.00 kJ/mol
58570
134810
8.7.33 19th Energy Level
145,170.00 kJ/mol74,000.00 kJ/mol
64702
148700
8.7.35 20th Energy Level
154,700.00 kJ/mol80,400.00 kJ/mol
80400
171200
8.7.36 21st Energy Level
167,400.00 kJ/mol87,000.00 kJ/mol
87000
179100
8.7.38 22nd Energy Level
178,100.00 kJ/mol93,400.00 kJ/mol
93400
184900
8.7.39 23rd Energy Level
189,300.00 kJ/mol98,420.00 kJ/mol
98420
198800
8.7.41 24th Energy Level
NA104,400.00 kJ/mol
104400
195200
8.7.42 25th Energy Level
NA121,900.00 kJ/mol
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121900
121900
8.7.43 26th Energy Level
NA127,700.00 kJ/mol
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127700
127700
8.7.45 27th Energy Level
NA133,800.00 kJ/mol
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133800
133800
8.7.46 28th Energy Level
NA139,800.00 kJ/mol
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139800
139800
8.7.47 29th Energy Level
NA148,100.00 kJ/mol
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148100
148100
8.7.48 30th Energy Level
NA154,500.00 kJ/mol
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154500
154500
8.8 Electrochemical Equivalent
1.10 g/amp-hr0.89 g/amp-hr
0.16812
8.3209
8.9 Electron Work Function
8.10 Other Chemical Properties
Chemical Stability, Ionization
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
9 Atomic
9.1 Atomic Number
9.2 Electron Configuration
[Ar] 3d2 4s2
[Kr] 4d5 5s1
9.3 Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
9.3.1 Crystal Lattice
9.4 Atom
9.4.1 Number of Protons
9.4.3 Number of Neutrons
9.4.6 Number of Electrons
9.5 Radius of an Atom
9.5.1 Atomic Radius
147.00 pm139.00 pm
112
265
9.6.1 Covalent Radius
160.00 pm154.00 pm
96
260
9.7.1 Van der Waals Radius
200.00 pm200.00 pm
139
348
9.8 Atomic Weight
47.87 amu95.95 amu
6.94
294
10.2 Atomic Volume
10.64 cm3/mol9.40 cm3/mol
1.39
71.07
10.6 Adjacent Atomic Numbers
10.6.1 Previous Element
10.6.2 Next Element
10.7 Valence Electron Potential
95.20 (-eV)88.60 (-eV)
8
392.42
10.8 Lattice Constant
295.08 pm314.70 pm
228.58
891.25
10.9 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
10.10 Lattice C/A Ratio
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
4.51 g/cm310.28 g/cm3
0.534
40.7
11.1.2 Density When Liquid (at m.p.)
4.11 g/cm39.33 g/cm3
0.512
20
11.3 Tensile Strength
434.00 MPa324.00 MPa
2.5
11000
11.4 Viscosity
11.5 Vapor Pressure
11.5.1 Vapor Pressure at 1000 K
11.6.1 Vapor Pressure at 2000 K
0.98 (Pa)0.00 (Pa)
2.62E-10
774
11.7 Elasticity properties
11.7.1 Shear Modulus
44.00 GPa126.00 GPa
1.3
222
11.8.1 Bulk Modulus
110.00 GPa230.00 GPa
1.6
462
11.10.1 Young's Modulus
116.00 GPa329.00 GPa
1.7
528
11.12 Poisson Ratio
11.15 Other Mechanical Properties
Ductile
Ductile, Weldable
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
13.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
13.1.3 Permeability
13.1.4 Susceptibility
13.2 Electrical Properties
13.2.1 Electrical Property
Poor Conductor
Semiconductor
13.2.2 Resistivity
420.00 nΩ·m53.40 nΩ·m
0.18
961
13.3.1 Electrical Conductivity
0.02 106/cm Ω0.19 106/cm Ω
0.00666
0.63
13.4.1 Electron Affinity
7.60 kJ/mol71.90 kJ/mol
0
222.8
14 Thermal
14.1 Specific Heat
0.52 J/(kg K)0.25 J/(kg K)
0.11
3.6
14.2 Molar Heat Capacity
25.06 J/mol·K24.06 J/mol·K
16.443
62.7
14.4 Thermal Conductivity
21.90 W/m·K138.00 W/m·K
6.3
429
14.5 Critical Temperature
14.6 Thermal Expansion
8.60 µm/(m·K)4.80 µm/(m·K)
4.5
97
14.8 Enthalpy
14.8.1 Enthalpy of Vaporization
429.00 kJ/mol594.10 kJ/mol
7.32
799.1
14.8.2 Enthalpy of Fusion
15.48 kJ/mol27.61 kJ/mol
2.1
35.23
15.1.2 Enthalpy of Atomization
468.60 kJ/mol653.00 kJ/mol
61.5
837
15.2 Standard Molar Entropy
27.30 J/mol.K28.70 J/mol.K
9.5
198.1