Platinum Plutonium Comparison
Periodic Table
Symbol
Pt
Pu
Group Number
10
8
0
18
Period Number
6
7
Block
d block
f block
Element Family
Transition Metal
Actinide
CAS Number
7440064
99+
7440075
99+
Space Group Name
Fm_ 3m
P121/m1
Space Group Number
225.00
2
11.00
13
Facts
Interesting Facts
- Platinum is the rarest metal from the Precious metal categories..
- Commercially Platinum is produced as a byproduct in ores of nickel.
- Plutonium metal if obtain from ores of uranium metal.
- Plutonium metal is very sensitive to the change in atmospheric conditions like temperature and pressure.
Sources
Mining, Ores of metals, Ores of Minerals
Mining, Ores of metals
History
Who Discovered
Antonio de Ulloa
Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan
Discovery
In 1735
In Between 1940 1941
Abundance
Abundance In Universe
5 * 10-7 %
19
Not Available
Abundance In Sun
~0.0000009 %
19
~-9999 %
Abundance In Meteorites
0.00 %
25
Not Available
Abundance In Earth's Crust
0.00 %
99+
Not Available
Uses
Uses & Benefits
- Platinum metal is mainly used in jewellery.
- Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
- Plutonium was used in atomic bombs and still it is being used in various weapons and Ammunition industry.
- It is also used in nuclear power plant as source of energy for space missions.
Industrial Uses
Aerospace Industry, Chemical Industry
Aerospace Industry, Ammunition Industry
Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing
NA
Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues
Alloys
Biological Properties
Toxicity
Non Toxic
Toxic
Present in Human Body
No
No
In Blood
Not Available
0.00 Blood/mg dm-3
37
In Bone
Not Available
0.00 p.p.m.
36
Physical Properties
Melting Point
1,772.00 °C
16
639.50 °C
99+
Boiling Point
3,827.00 °C
15
3,235.00 °C
24
Appearance
Physical State
Solid
Solid
Color
Silvery White
Silvery White
Luster
Metallic
NA
Hardness
Mohs Hardness
3.50
11
Not Available
Brinell Hardness
300.00 MPa
34
Not Available
Vickers Hardness
400.00 MPa
25
Not Available
Speed of Sound
2,800.00 m/s
29
2,260.00 m/s
99+
Optical Properties
Reflectivity
73.00 %
8
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
Pt
Pu
Isotopes
Known Isotopes
35
4
20
19
Electronegativity
Pauling Electronegativity
2.28
3
1.28
33
Allred Rochow Electronegativity
1.44
17
1.22
26
Allen Electronegativity
1.72
16
Not Available
Electropositivity
Pauling Electropositivity
1.72
99+
2.72
21
Ionization Energies
1st Energy Level
870.00 kJ/mol
10
584.70 kJ/mol
99+
2nd Energy Level
1,791.00 kJ/mol
21
1,128.00 kJ/mol
99+
3rd Energy Level
Not Available
2,084.00 kJ/mol
99+
4th Energy Level
Not Available
3,338.00 kJ/mol
99+
Electrochemical Equivalent
1.82 g/amp-hr
35
2.28 g/amp-hr
22
Electron Work Function
5.65 eV
1
Not Available
Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization
Corrosion, Ionization, Radioactive Isotopes, Radioactivity
Atomic Properties
Atomic Number
78
38
94
24
Electron Configuration
[Xe] 4f14 5d9 6s1
[Rn] 5f6 7s2
Crystal Structure
Face Centered Cubic (FCC)
Monoclinic (MON)
Crystal Lattice
FCC-Crystal-Structure-of-Platinum.jpg#100
MON-Crystal-Structure-of-Plutonium.jpg#100
Atom
Number of Protons
78
38
94
24
Number of Neutrons
117
24
150
11
Number of Electrons
78
38
94
24
Radius of an Atom
Atomic Radius
139.00 pm
39
159.00 pm
28
Covalent Radius
136.00 pm
99+
187.00 pm
20
Van der Waals Radius
175.00 pm
36
200.00 pm
28
Atomic Weight
47.87 amu
99+
244.00 amu
19
Atomic Volume
9.09 cm3/mol
99+
12.32 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
392.42 (-eV)
1
64.90 (-eV)
21
Lattice Constant
392.42 pm
24
618.30 pm
4
Lattice Angles
π/2, π/2, π/2
NA
Lattice C/A Ratio
Not Available
Not Available
Mechanical Properties
Density
Density At Room Temperature
21.45 g/cm3
11
19.82 g/cm3
13
Density When Liquid (at m.p.)
19.77 g/cm3
2
16.63 g/cm3
8
Tensile Strength
125.00 MPa
14
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 1000 K
Not Available
0.00 (Pa)
26
Vapor Pressure at 2000 K
0.07 (Pa)
18
2.20 (Pa)
12
Elasticity properties
Shear Modulus
61.00 GPa
14
43.00 GPa
18
Bulk Modulus
230.00 GPa
6
Not Available
Young's Modulus
168.00 GPa
14
96.00 GPa
21
Poisson Ratio
0.38
6
0.21
32
Other Mechanical Properties
Ductile, Malleable
Ductile, Malleable
Magnetic Properties
Magnetic Characteristics
Specific Gravity
21.45
4
19.84
7
Magnetic Ordering
Paramagnetic
Paramagnetic
Permeability
0.00 H/m
3
Not Available
Electrical Properties
Electrical Property
Conductor
Poor Conductor
Resistivity
105.00 nΩ·m
30
1.46 nΩ·m
99+
Electrical Conductivity
0.10 106/cm Ω
21
0.01 106/cm Ω
99+
Electron Affinity
205.30 kJ/mol
2
Not Available
Thermal Properties
Specific Heat
0.13 J/(kg K)
39
0.13 J/(kg K)
39
Molar Heat Capacity
25.86 J/mol·K
35
35.50 J/mol·K
3
Thermal Conductivity
71.60 W/m·K
24
6.74 W/m·K
99+
Critical Temperature
Not Available
Not Available
Thermal Expansion
8.80 µm/(m·K)
99+
46.70 µm/(m·K)
6
Enthalpy
Enthalpy of Vaporization
510.50 kJ/mol
11
344.00 kJ/mol
25
Enthalpy of Fusion
19.70 kJ/mol
12
2.82 kJ/mol
99+
Enthalpy of Atomization
565.00 kJ/mol
11
360.00 kJ/mol
26
Standard Molar Entropy
41.60 J/mol.K
36
Not Available
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