Uranium vs Cobalt
Periodic Table
Symbol
U
Co
Group Number
0
18
9
9
Period Number
7
4
Block
f block
d block
Element Family
Actinide
Transition Metal
CAS Number
7440611
28
7440484
38
Space Group Name
Cmcm
P63/mmc
Space Group Number
63.00
10
194.00
5
Facts
Interesting Facts
- Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
- 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.
Sources
Earth's crust, Mining, Ores of Minerals
Found in Compounds, Mining, Ores of Minerals
History
Who Discovered
Not Available
Georg Brandt
Discovery
In 1789
In 1732
Abundance
Abundance In Universe
2 * 10-8 %
29
3 * 10-4 %
9
Abundance In Sun
~0.0000001 %
26
~0.0004 %
9
Abundance In Meteorites
0.00 %
99+
0.06 %
10
Abundance In Earth's Crust
0.00 %
36
0.00 %
21
Abundance In Oceans
0.00 %
11
0.00 %
20
Abundance In Humans
Not Available
0.00 %
17
Uses
Uses & Benefits
- The main use of this metal include nuclear fuel which is used to generate electricity yin nuclear power stations.
- Synthetic elements like transuranium are made from Uranium metal.
- 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.
Industrial Uses
Ammunition Industry, Chemical Industry
Chemical Industry, Electrical Industry, Electronic Industry
Medical Uses
NA
Pharmaceutical Industry
Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues
Alloys
Biological Properties
Toxicity
Toxic
Toxic
Present in Human Body
No
Yes
In Blood
Not Available
0.04 Blood/mg dm-3
18
In Bone
Not Available
0.04 p.p.m.
27
Physical Properties
Melting Point
1,132.00 °C
39
1,495.00 °C
29
Boiling Point
3,818.00 °C
16
2,870.00 °C
34
Appearance
Physical State
Solid
Solid
Color
Silvery Gray
Gray
Luster
Metallic
Metallic
Hardness
Mohs Hardness
6.00
6
5.00
8
Brinell Hardness
2,350.00 MPa
2
470.00 MPa
26
Vickers Hardness
1,960.00 MPa
2
1,043.00 MPa
11
Speed of Sound
3,155.00 m/s
25
4,720.00 m/s
14
Optical Properties
Reflectivity
Not Available
67.00 %
11
Allotropes
No
Yes
α Allotropes
Not Available
α-Cobalt
β Allotropes
Not Available
β-Cobalt
γ Allotropes
Not Available
Not Available
Chemical Properties
Chemical Formula
U
Co
Isotopes
Known Isotopes
25
14
26
13
Electronegativity
Pauling Electronegativity
1.38
28
1.88
12
Sanderson Electronegativity
Not Available
2.56
1
Allred Rochow Electronegativity
1.22
26
1.70
5
Allen Electronegativity
Not Available
1.84
10
Electropositivity
Pauling Electropositivity
2.62
26
2.12
99+
Ionization Energies
1st Energy Level
597.60 kJ/mol
99+
760.40 kJ/mol
19
2nd Energy Level
1,420.00 kJ/mol
99+
1,648.00 kJ/mol
31
3rd Energy Level
1,900.00 kJ/mol
99+
3,232.00 kJ/mol
22
4th Energy Level
3,145.00 kJ/mol
99+
4,950.00 kJ/mol
19
5th Energy Level
Not Available
7,670.00 kJ/mol
12
6th Energy Level
Not Available
9,840.00 kJ/mol
12
7th Energy level
Not Available
12,440.00 kJ/mol
11
8th Energy Level
Not Available
15,230.00 kJ/mol
12
9th Energy Level
Not Available
17,959.00 kJ/mol
13
10th Energy Level
Not Available
26,570.00 kJ/mol
7
11th Energy Level
Not Available
29,400.00 kJ/mol
8
12th Energy Level
Not Available
32,400.00 kJ/mol
8
13th Energy Level
Not Available
36,600.00 kJ/mol
8
14th Energy Level
Not Available
39,700.00 kJ/mol
9
15th Energy Level
Not Available
42,800.00 kJ/mol
12
16th Energy Level
Not Available
49,396.00 kJ/mol
11
17th Energy Level
Not Available
52,737.00 kJ/mol
13
18th Energy Level
Not Available
134,810.00 kJ/mol
1
19th Energy Level
Not Available
145,170.00 kJ/mol
2
20th Energy Level
Not Available
154,700.00 kJ/mol
4
21st Energy Level
Not Available
167,400.00 kJ/mol
4
22nd Energy Level
Not Available
178,100.00 kJ/mol
3
23rd Energy Level
Not Available
189,300.00 kJ/mol
3
Electrochemical Equivalent
1.48 g/amp-hr
99+
1.10 g/amp-hr
99+
Electron Work Function
3.63 eV
30
5.00 eV
5
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Ionization
Atomic Properties
Atomic Number
92
26
22
99+
Electron Configuration
[Rn] 5f3 6d1 7s2
[Ar] 3d2 4s2
Crystal Structure
Orthorhombic (ORTH)
Hexagonal Close Packed (HCP)
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100
HCP-Crystal-Structure-of-Cobalt.jpg#100
Atom
Number of Protons
92
26
22
99+
Number of Neutrons
146
13
26
99+
Number of Electrons
92
26
22
99+
Radius of an Atom
Atomic Radius
156.00 pm
29
147.00 pm
34
Covalent Radius
196.00 pm
14
160.00 pm
30
Van der Waals Radius
186.00 pm
33
200.00 pm
28
Atomic Weight
238.03 amu
21
47.87 amu
99+
Atomic Volume
12.59 cm3/mol
40
10.64 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
170.00 (-eV)
4
95.20 (-eV)
10
Lattice Constant
295.08 pm
99+
295.08 pm
99+
Lattice Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Lattice C/A Ratio
Not Available
Not Available
Mechanical Properties
Density
Density At Room Temperature
19.10 g/cm3
17
4.51 g/cm3
99+
Density When Liquid (at m.p.)
17.30 g/cm3
7
4.11 g/cm3
99+
Tensile Strength
Not Available
434.00 MPa
9
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 2000 K
0.01 (Pa)
20
0.98 (Pa)
14
Elasticity properties
Shear Modulus
111.00 GPa
10
44.00 GPa
17
Bulk Modulus
100.00 GPa
16
110.00 GPa
15
Young's Modulus
208.00 GPa
10
116.00 GPa
18
Poisson Ratio
0.23
30
0.32
12
Other Mechanical Properties
Ductile, Malleable
Ductile
Magnetic Properties
Magnetic Characteristics
Specific Gravity
18.80
10
4,500.00
1
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Properties
Electrical Property
Poor Conductor
Poor Conductor
Resistivity
0.28 nΩ·m
99+
420.00 nΩ·m
12
Electrical Conductivity
0.04 106/cm Ω
37
0.02 106/cm Ω
99+
Electron Affinity
Not Available
7.60 kJ/mol
37
Thermal Properties
Specific Heat
0.12 J/(kg K)
40
0.52 J/(kg K)
9
Molar Heat Capacity
27.67 J/mol·K
15
25.06 J/mol·K
99+
Thermal Conductivity
27.50 W/m·K
40
21.90 W/m·K
99+
Critical Temperature
Not Available
Not Available
Thermal Expansion
13.90 µm/(m·K)
27
8.60 µm/(m·K)
99+
Enthalpy
Enthalpy of Vaporization
477.00 kJ/mol
13
429.00 kJ/mol
15
Enthalpy of Fusion
15.48 kJ/mol
19
15.48 kJ/mol
19
Enthalpy of Atomization
489.50 kJ/mol
14
468.60 kJ/mol
15
Standard Molar Entropy
50.20 J/mol.K
31
27.30 J/mol.K
99+
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