Platinum vs Manganese
Periodic Table
Symbol
Pt
Mn
Group Number
10
8
7
11
Period Number
6
4
Block
d block
d block
Element Family
Transition Metal
Transition Metal
CAS Number
7440064
99+
7439965
99+
Space Group Name
Fm_ 3m
I_ 43m
Space Group Number
225.00
2
217.00
4
Facts
Interesting Facts
- Platinum is the rarest metal from the Precious metal categories..
- Commercially Platinum is produced as a byproduct in ores of nickel.
- Manganese is an essential trace element in all forms of life.
- Manganese metal oxidizes very easily, but it does not fuse that easily.
Sources
Mining, Ores of metals, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
History
Who Discovered
Antonio de Ulloa
Johann Gottlieb Gahn
Discovery
In 1735
In 1774
Abundance
Abundance In Universe
5 * 10-7 %
19
8 * 10-4 %
8
Abundance In Sun
~0.0000009 %
19
~0.001 %
8
Abundance In Meteorites
0.00 %
25
0.27 %
8
Abundance In Earth's Crust
0.00 %
99+
0.11 %
8
Abundance In Oceans
Not Available
0.00 %
13
Abundance In Humans
Not Available
0.00 %
13
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.
- This metal is very brittle hence it mostly not used as a pure metal, but its alloys are very useful
- Its alloy Manganese steel is extremely strong and used in railway tracks, safes, prison bars and riffle barrels.
Industrial Uses
Aerospace Industry, Chemical Industry
Automobile Industry, Electrical Industry, Electronic 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
Yes
In Blood
Not Available
0.08 Blood/mg dm-3
14
In Bone
Not Available
100.00 p.p.m.
8
Physical Properties
Melting Point
1,772.00 °C
16
1,245.00 °C
37
Boiling Point
3,827.00 °C
15
1,962.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Silvery White
Silver
Luster
Metallic
Metallic
Hardness
Mohs Hardness
3.50
11
6.00
6
Brinell Hardness
300.00 MPa
34
196.00 MPa
99+
Vickers Hardness
400.00 MPa
25
Not Available
Speed of Sound
2,800.00 m/s
29
5,150.00 m/s
7
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
Mn
Isotopes
Known Isotopes
35
4
21
18
Electronegativity
Pauling Electronegativity
2.28
3
1.55
25
Sanderson Electronegativity
Not Available
2.20
7
Allred Rochow Electronegativity
1.44
17
1.60
9
Allen Electronegativity
1.72
16
1.75
15
Electropositivity
Pauling Electropositivity
1.72
99+
2.45
29
Ionization Energies
1st Energy Level
870.00 kJ/mol
10
717.30 kJ/mol
30
2nd Energy Level
1,791.00 kJ/mol
21
1,509.00 kJ/mol
39
3rd Energy Level
Not Available
3,248.00 kJ/mol
21
4th Energy Level
Not Available
4,940.00 kJ/mol
20
5th Energy Level
Not Available
6,990.00 kJ/mol
17
6th Energy Level
Not Available
9,220.00 kJ/mol
16
7th Energy level
Not Available
11,500.00 kJ/mol
16
8th Energy Level
Not Available
18,770.00 kJ/mol
5
9th Energy Level
Not Available
21,400.00 kJ/mol
6
10th Energy Level
Not Available
23,960.00 kJ/mol
9
11th Energy Level
Not Available
27,590.00 kJ/mol
10
12th Energy Level
Not Available
30,330.00 kJ/mol
10
13th Energy Level
Not Available
33,150.00 kJ/mol
11
14th Energy Level
Not Available
38,880.00 kJ/mol
10
15th Energy Level
Not Available
41,987.00 kJ/mol
13
16th Energy Level
Not Available
109,480.00 kJ/mol
1
17th Energy Level
Not Available
118,100.00 kJ/mol
2
18th Energy Level
Not Available
127,100.00 kJ/mol
3
19th Energy Level
Not Available
138,600.00 kJ/mol
4
20th Energy Level
Not Available
148,500.00 kJ/mol
6
21st Energy Level
Not Available
158,600.00 kJ/mol
6
22nd Energy Level
Not Available
172,500.00 kJ/mol
5
23rd Energy Level
Not Available
181,380.00 kJ/mol
5
Electrochemical Equivalent
1.82 g/amp-hr
35
0.29 g/amp-hr
99+
Electron Work Function
5.65 eV
1
4.10 eV
25
Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization
Ionization, Radioactive Isotopes
Atomic Properties
Atomic Number
78
38
25
99+
Electron Configuration
[Xe] 4f14 5d9 6s1
[Ar] 3d5 4s2
Crystal Structure
Face Centered Cubic (FCC)
Body Centered Cubic (BCC)
Crystal Lattice
FCC-Crystal-Structure-of-Platinum.jpg#100
BCC-Crystal-Structure-.jpg#100
Atom
Number of Protons
78
38
25
99+
Number of Neutrons
117
24
30
99+
Number of Electrons
78
38
25
99+
Radius of an Atom
Atomic Radius
139.00 pm
39
127.00 pm
99+
Covalent Radius
136.00 pm
99+
139.00 pm
99+
Van der Waals Radius
175.00 pm
36
200.00 pm
28
Atomic Weight
47.87 amu
99+
54.94 amu
99+
Atomic Volume
9.09 cm3/mol
99+
1.39 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
392.42 (-eV)
1
220.00 (-eV)
2
Lattice Constant
392.42 pm
24
891.25 pm
1
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
21.45 g/cm3
11
7.21 g/cm3
99+
Density When Liquid (at m.p.)
19.77 g/cm3
2
5.95 g/cm3
99+
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)
12
Vapor Pressure at 2000 K
0.07 (Pa)
18
Not Available
Elasticity properties
Shear Modulus
61.00 GPa
14
Not Available
Bulk Modulus
230.00 GPa
6
120.00 GPa
14
Young's Modulus
168.00 GPa
14
198.00 GPa
12
Poisson Ratio
0.38
6
Not Available
Other Mechanical Properties
Ductile, Malleable
NA
Magnetic Properties
Magnetic Characteristics
Specific Gravity
21.45
4
7.21
99+
Magnetic Ordering
Paramagnetic
Paramagnetic
Permeability
0.00 H/m
3
Not Available
Electrical Properties
Electrical Property
Conductor
Conductor
Resistivity
105.00 nΩ·m
30
1.44 nΩ·m
99+
Electrical Conductivity
0.10 106/cm Ω
21
0.01 106/cm Ω
99+
Electron Affinity
205.30 kJ/mol
2
0.00 kJ/mol
40
Thermal Properties
Specific Heat
0.13 J/(kg K)
39
0.48 J/(kg K)
11
Molar Heat Capacity
25.86 J/mol·K
35
26.32 J/mol·K
29
Thermal Conductivity
71.60 W/m·K
24
7.81 W/m·K
99+
Critical Temperature
Not Available
Not Available
Thermal Expansion
8.80 µm/(m·K)
99+
21.70 µm/(m·K)
21
Enthalpy
Enthalpy of Vaporization
510.50 kJ/mol
11
219.70 kJ/mol
99+
Enthalpy of Fusion
19.70 kJ/mol
12
14.64 kJ/mol
23
Enthalpy of Atomization
565.00 kJ/mol
11
280.30 kJ/mol
38
Standard Molar Entropy
41.60 J/mol.K
36
32.00 J/mol.K
99+
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