Uranium vs Platinum
Periodic Table
Symbol
U
Pt
Group Number
0
18
10
8
Period Number
7
6
Block
f block
d block
Element Family
Actinide
Transition Metal
CAS Number
7440611
28
7440064
99+
Space Group Name
Cmcm
Fm_ 3m
Space Group Number
63.00
10
225.00
2
Facts
Interesting Facts
- Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
- Platinum is the rarest metal from the Precious metal categories..
- Commercially Platinum is produced as a byproduct in ores of nickel.
Sources
Earth's crust, Mining, Ores of Minerals
Mining, Ores of metals, Ores of Minerals
History
Who Discovered
Not Available
Antonio de Ulloa
Discovery
In 1789
In 1735
Abundance
Abundance In Universe
2 * 10-8 %
29
5 * 10-7 %
19
Abundance In Sun
~0.0000001 %
26
~0.0000009 %
19
Abundance In Meteorites
0.00 %
99+
0.00 %
25
Abundance In Earth's Crust
0.00 %
36
0.00 %
99+
Abundance In Oceans
0.00 %
11
Not Available
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.
- Platinum metal is mainly used in jewellery.
- Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
Industrial Uses
Ammunition Industry, Chemical Industry
Aerospace Industry, Chemical Industry
Medical Uses
NA
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing
Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues
Biological Properties
Toxicity
Toxic
Non Toxic
Present in Human Body
No
No
Physical Properties
Melting Point
1,132.00 °C
39
1,772.00 °C
16
Boiling Point
3,818.00 °C
16
3,827.00 °C
15
Appearance
Physical State
Solid
Solid
Color
Silvery Gray
Silvery White
Luster
Metallic
Metallic
Hardness
Mohs Hardness
6.00
6
3.50
11
Brinell Hardness
2,350.00 MPa
2
300.00 MPa
34
Vickers Hardness
1,960.00 MPa
2
400.00 MPa
25
Speed of Sound
3,155.00 m/s
25
2,800.00 m/s
29
Optical Properties
Reflectivity
Not Available
73.00 %
8
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
U
Pt
Isotopes
Known Isotopes
25
14
35
4
Electronegativity
Pauling Electronegativity
1.38
28
2.28
3
Allred Rochow Electronegativity
1.22
26
1.44
17
Allen Electronegativity
Not Available
1.72
16
Electropositivity
Pauling Electropositivity
2.62
26
1.72
99+
Ionization Energies
1st Energy Level
597.60 kJ/mol
99+
870.00 kJ/mol
10
2nd Energy Level
1,420.00 kJ/mol
99+
1,791.00 kJ/mol
21
3rd Energy Level
1,900.00 kJ/mol
99+
Not Available
4th Energy Level
3,145.00 kJ/mol
99+
Not Available
Electrochemical Equivalent
1.48 g/amp-hr
99+
1.82 g/amp-hr
35
Electron Work Function
3.63 eV
30
5.65 eV
1
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Anti Corrosion, Ionization
Atomic Properties
Atomic Number
92
26
78
38
Electron Configuration
[Rn] 5f3 6d1 7s2
[Xe] 4f14 5d9 6s1
Crystal Structure
Orthorhombic (ORTH)
Face Centered Cubic (FCC)
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100
FCC-Crystal-Structure-of-Platinum.jpg#100
Atom
Number of Protons
92
26
78
38
Number of Neutrons
146
13
117
24
Number of Electrons
92
26
78
38
Radius of an Atom
Atomic Radius
156.00 pm
29
139.00 pm
39
Covalent Radius
196.00 pm
14
136.00 pm
99+
Van der Waals Radius
186.00 pm
33
175.00 pm
36
Atomic Weight
238.03 amu
21
47.87 amu
99+
Atomic Volume
12.59 cm3/mol
40
9.09 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
170.00 (-eV)
4
392.42 (-eV)
1
Lattice Constant
295.08 pm
99+
392.42 pm
24
Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
Lattice C/A Ratio
Not Available
Not Available
Mechanical Properties
Density
Density At Room Temperature
19.10 g/cm3
17
21.45 g/cm3
11
Density When Liquid (at m.p.)
17.30 g/cm3
7
19.77 g/cm3
2
Tensile Strength
Not Available
125.00 MPa
14
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 2000 K
0.01 (Pa)
20
0.07 (Pa)
18
Elasticity properties
Shear Modulus
111.00 GPa
10
61.00 GPa
14
Bulk Modulus
100.00 GPa
16
230.00 GPa
6
Young's Modulus
208.00 GPa
10
168.00 GPa
14
Poisson Ratio
0.23
30
0.38
6
Other Mechanical Properties
Ductile, Malleable
Ductile, Malleable
Magnetic Properties
Magnetic Characteristics
Specific Gravity
18.80
10
21.45
4
Magnetic Ordering
Paramagnetic
Paramagnetic
Permeability
Not Available
0.00 H/m
3
Electrical Properties
Electrical Property
Poor Conductor
Conductor
Resistivity
0.28 nΩ·m
99+
105.00 nΩ·m
30
Electrical Conductivity
0.04 106/cm Ω
37
0.10 106/cm Ω
21
Electron Affinity
Not Available
205.30 kJ/mol
2
Thermal Properties
Specific Heat
0.12 J/(kg K)
40
0.13 J/(kg K)
39
Molar Heat Capacity
27.67 J/mol·K
15
25.86 J/mol·K
35
Thermal Conductivity
27.50 W/m·K
40
71.60 W/m·K
24
Critical Temperature
Not Available
Not Available
Thermal Expansion
13.90 µm/(m·K)
27
8.80 µm/(m·K)
99+
Enthalpy
Enthalpy of Vaporization
477.00 kJ/mol
13
510.50 kJ/mol
11
Enthalpy of Fusion
15.48 kJ/mol
19
19.70 kJ/mol
12
Enthalpy of Atomization
489.50 kJ/mol
14
565.00 kJ/mol
11
Standard Molar Entropy
50.20 J/mol.K
31
41.60 J/mol.K
36
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