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Platinum
Platinum

Holmium
Holmium



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Platinum Holmium Comparison

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1 Periodic Table
1.1 Symbol
Pt
Ho
1.2 Group Number
10NA
Gadolinium Metal
0 17
1.3 Period Number
66
Lithium Metal
2 7
1.4 Block
d block
f block
1.5 Element Family
Transition Metal
Lanthanide
1.6 CAS Number
74400647440600
Aluminium Metal
7429905 54386242
1.7 Space Group Name
Fm_ 3m
P63/mmc
1.8 Space Group Number
225.00194.00
Plutonium Metal
11 229
2 Facts
2.1 Interesting Facts
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  • Holmium metal is very soft and malleable.
  • Holmium metal is well known for its corrosion resistivity.
2.2 Sources
Mining, Ores of metals, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Antonio de Ulloa
Marc Delafontaine
2.3.2 Discovery
In 1735
In 1878
2.4 Abundance
2.4.1 Abundance In Universe
5 * 10-7 %5 * 10-8 %
Thallium Metal
5E-09 0.11
2.4.2 Abundance In Sun
~0.0000009 %~-9999 %
Beryllium Metal
1E-08 0.1
2.4.3 Abundance In Meteorites
0.00 %0.00 %
Gold Metal
1.7E-07 22
2.4.4 Abundance In Earth's Crust
0.00 %0.00 %
Radium Metal
9.9E-12 8.1
2.4.5 Abundance In Oceans
NA0.00 %
Protactinium Metal
2E-23 1.1
2.4.6 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Platinum metal is mainly used in jewellery.
  • Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
  • Holmium metal has an ability to absorb neutrons, so this metal is used in nuclear reactors to keep the chain reactions of elements under control.
  • Alloys of Holmium are used to produce Magnet.
3.1.1 Industrial Uses
Aerospace Industry, Chemical Industry
NA
3.1.2 Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing
NA
3.1.3 Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues
Alloys, Nuclear Research
3.2 Biological Properties
3.2.1 Toxicity
Non Toxic
Low Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
NANA
Plutonium Metal
0 1970
3.2.4 In Bone
NANA
Plutonium Metal
0 170000
4 Physical
4.1 Melting Point
1,772.00 °C1,461.00 °C
Francium Metal
27 3410
4.2 Boiling Point
3,827.00 °C2,600.00 °C
Flerovium Metal
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silvery White
Silvery White
4.3.3 Luster
Metallic
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
3.50NA
Cesium Metal
0.2 8.5
4.4.2 Brinell Hardness
300.00 MPa746.00 MPa
Cesium Metal
0.14 3490
4.4.3 Vickers Hardness
400.00 MPa481.00 MPa
Palladium Metal
121 3430
4.5 Speed of Sound
2,800.00 m/s2,760.00 m/s
Thallium Metal
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
4.6.2 Reflectivity
73.00 %NA
Molybdenum Metal
58 97
4.7 Allotropes
4.7.1 α Allotropes
Not Available
Not Available
4.7.2 β Allotropes
Not Available
Not Available
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
Pt
Ho
5.2 Isotopes
5.2.1 Known Isotopes
3534
Tennessine Metal
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
2.281.23
Francium Metal
0.7 2.54
5.3.2 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.441.10
Cesium Metal
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
5.3.5 Allen Electronegativity
1.72NA
Cesium Metal
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
1.722.77
Gold Metal
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
870.00 kJ/mol581.00 kJ/mol
Cesium Metal
375.7 26130
5.5.2 2nd Energy Level
1,791.00 kJ/mol1,140.00 kJ/mol
Ruthenium Metal
710.2162 28750
5.5.3 3rd Energy Level
NA2,204.00 kJ/mol
Osmium Metal
1600 34230
5.5.4 4th Energy Level
NA4,100.00 kJ/mol
Thorium Metal
2780 37066
5.5.5 5th Energy Level
NANA
Dubnium Metal
4305.2 97510
5.5.6 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
5.5.7 7th Energy level
NANA
Bohrium Metal
7226.8 114300
5.5.8 8th Energy Level
NANA
Hassium Metal
8857.4 125300
5.5.9 9th Energy Level
NANA
Yttrium Metal
14110 134700
5.5.10 10th Energy Level
NANA
Strontium Metal
17100 144300
5.5.11 11th Energy Level
NANA
Yttrium Metal
19900 169988
5.5.12 12th Energy Level
NANA
Molybdenum Metal
22219 189368
5.5.13 13th Energy Level
NANA
Molybdenum Metal
26930 76015
5.5.14 14th Energy Level
NANA
Molybdenum Metal
29196 86450
5.5.15 15th Energy Level
NANA
Manganese Metal
41987 97510
5.5.16 16th Energy Level
NANA
Iron Metal
47206 109480
5.5.17 17th Energy Level
NANA
Cobalt Metal
52737 122200
5.5.18 18th Energy Level
NANA
Nickel Metal
58570 134810
5.5.19 19th Energy Level
NANA
Copper Metal
64702 148700
5.5.20 20th Energy Level
NANA
Molybdenum Metal
80400 171200
5.5.21 21st Energy Level
NANA
Molybdenum Metal
87000 179100
5.5.22 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
5.5.23 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
5.5.24 24th Energy Level
NANA
Molybdenum Metal
104400 195200
5.5.25 25th Energy Level
NANA
Molybdenum Metal
121900 121900
5.5.26 26th Energy Level
NANA
Molybdenum Metal
127700 127700
5.5.27 27th Energy Level
NANA
Molybdenum Metal
133800 133800
5.5.28 28th Energy Level
NANA
Molybdenum Metal
139800 139800
5.5.29 29th Energy Level
NANA
Molybdenum Metal
148100 148100
5.5.30 30th Energy Level
NANA
Molybdenum Metal
154500 154500
5.6 Electrochemical Equivalent
1.82 g/amp-hr2.02 g/amp-hr
Beryllium Metal
0.16812 8.3209
5.7 Electron Work Function
5.65 eVNA
Cesium Metal
2.14 5.65
5.8 Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
6 Atomic
6.1 Atomic Number
7867
Lithium Metal
3 117
6.2 Electron Configuration
[Xe] 4f14 5d9 6s1
[Xe] 4f11 6s2
6.3 Crystal Structure
Face Centered Cubic (FCC)
Hexagonal Close Packed (HCP)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
7867
Lithium Metal
3 117
6.4.2 Number of Neutrons
11798
Lithium Metal
4 184
6.4.3 Number of Electrons
7867
Lithium Metal
3 117
6.5 Radius of an Atom
6.5.1 Atomic Radius
139.00 pm176.00 pm
Beryllium Metal
112 265
6.5.2 Covalent Radius
136.00 pm192.00 pm
Beryllium Metal
96 260
6.5.3 Van der Waals Radius
175.00 pm216.00 pm
Zinc Metal
139 348
6.6 Atomic Weight
47.87 amu164.93 amu
Lithium Metal
6.94 294
6.7 Atomic Volume
9.09 cm3/mol18.70 cm3/mol
Manganese Metal
1.39 71.07
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
392.42 (-eV)47.90 (-eV)
Francium Metal
8 392.42
6.10 Lattice Constant
392.42 pm357.73 pm
Beryllium Metal
228.58 891.25
6.11 Lattice Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
6.12 Lattice C/A Ratio
NA1.57
Beryllium Metal
1.567 1.886
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
21.45 g/cm38.79 g/cm3
Lithium Metal
0.534 40.7
7.1.2 Density When Liquid (at m.p.)
19.77 g/cm38.34 g/cm3
Lithium Metal
0.512 20
7.2 Tensile Strength
125.00 MPaNA
Indium Metal
2.5 11000
7.3 Viscosity
NANA
Mercury Metal
0.001526 0.001526
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
NA0.00 (Pa)
Cerium Metal
2.47E-11 121
7.4.2 Vapor Pressure at 2000 K
0.07 (Pa)NA
Tungsten Metal
2.62E-10 774
7.5 Elasticity properties
7.5.1 Shear Modulus
61.00 GPa26.30 GPa
Potassium Metal
1.3 222
7.5.2 Bulk Modulus
230.00 GPa40.20 GPa
Cesium Metal
1.6 462
7.5.3 Young's Modulus
168.00 GPa64.80 GPa
Cesium Metal
1.7 528
7.6 Poisson Ratio
0.380.23
Beryllium Metal
0.032 0.47
7.7 Other Mechanical Properties
Ductile, Malleable
Ductile, Malleable, Sectile
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
21.458.80
Lithium Metal
0.53 4500
8.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
8.1.3 Permeability
0.00 H/mNA
Bismuth Metal
1.25643E-06 0.0063
8.1.4 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
8.2 Electrical Properties
8.2.1 Electrical Property
Conductor
Conductor
8.2.2 Resistivity
105.00 nΩ·m814.00 nΩ·m
Thallium Metal
0.18 961
8.2.3 Electrical Conductivity
0.10 106/cm Ω0.01 106/cm Ω
Plutonium Metal
0.00666 0.63
8.2.4 Electron Affinity
205.30 kJ/mol50.00 kJ/mol
Mercury Metal
0 222.8
9 Thermal
9.1 Specific Heat
0.13 J/(kg K)0.16 J/(kg K)
Americium Metal
0.11 3.6
9.2 Molar Heat Capacity
25.86 J/mol·K27.15 J/mol·K
Beryllium Metal
16.443 62.7
9.3 Thermal Conductivity
71.60 W/m·K16.20 W/m·K
Neptunium Metal
6.3 429
9.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
9.5 Thermal Expansion
8.80 µm/(m·K)11.20 µm/(m·K)
Tungsten Metal
4.5 97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
510.50 kJ/mol241.00 kJ/mol
Zinc Metal
7.32 799.1
9.6.2 Enthalpy of Fusion
19.70 kJ/mol11.76 kJ/mol
Cesium Metal
2.1 35.23
9.6.3 Enthalpy of Atomization
565.00 kJ/mol301.00 kJ/mol
Mercury Metal
61.5 837
9.7 Standard Molar Entropy
41.60 J/mol.K75.30 J/mol.K
Beryllium Metal
9.5 198.1