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Osmium
Osmium

Bismuth
Bismuth



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Osmium
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Bismuth

Osmium Bismuth Comparison

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1 Periodic Table
1.1 Symbol
Os
Bi
1.2 Group Number
815
Gadolinium Metal
0 17
1.3 Period Number
66
Lithium Metal
2 7
1.4 Block
d block
p block
1.5 Element Family
Transition Metal
Post-​Transition
1.6 CAS Number
74400427440699
Aluminium Metal
7429905 54386242
1.7 Space Group Name
P63/mmc
C12/m1
1.8 Space Group Number
194.0012.00
Plutonium Metal
11 229
2 Facts
2.1 Interesting Facts
  • Osmium metal does not oxidize in air unless it is heated.
  • But if it heated den it forms Osmium Tetroxide, which is highly toxic.
  • Bismuth metal is soluble and reacts with concentrated nitric acid.
  • It oxides are used as a yellow pigment in paint. Bismuth chloride oxide BiClO gives a pearly texture to cosmetics.
2.2 Sources
Found As a By-product, Found in Minerals, Mining
Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Smithson Tennant
Claude François Geoffroy
2.3.2 Discovery
In 1803
In 1753
2.4 Abundance
2.4.1 Abundance In Universe
3 * 10-7 %7 * 10-8 %
Thallium Metal
5E-09 0.11
2.4.2 Abundance In Sun
~0.0000002 %~0.000006 %
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
  • Its has very limited uses and its alloys are very hard and are used in the manufacturing of pen tips, pivots, needles and electrical contacts.
  • It is also used as industrial catalyst to speed up the chemical reaction.
  • Tin and bismuth alloys have a very low melting point and hence it is used in fire detector and the fire extinguishers. It also used in electric solders and fuses.
3.1.1 Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
3.1.2 Medical Uses
NA
Pharmaceutical Industry
3.1.3 Other Uses
Alloys
Alloys
3.2 Biological Properties
3.2.1 Toxicity
Highly Toxic
Low Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
NA0.02 Blood/mg dm-3
Plutonium Metal
0 1970
3.2.4 In Bone
NA0.20 p.p.m.
Plutonium Metal
0 170000
4 Physical
4.1 Melting Point
3,045.00 °C271.30 °C
Francium Metal
27 3410
4.2 Boiling Point
5,027.00 °C1,560.00 °C
Flerovium Metal
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silvery Bluish-Gray
Silver
4.3.3 Luster
Metallic
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
7.002.25
Cesium Metal
0.2 8.5
4.4.2 Brinell Hardness
3,490.00 MPa70.00 MPa
Cesium Metal
0.14 3490
4.4.3 Vickers Hardness
NANA
Palladium Metal
121 3430
4.5 Speed of Sound
4,940.00 m/s1,790.00 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
NANA
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
Os
Bi
5.2 Isotopes
5.2.1 Known Isotopes
3533
Tennessine Metal
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
2.202.02
Francium Metal
0.7 2.54
5.3.2 Sanderson Electronegativity
NA2.34
Cesium Metal
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.521.67
Cesium Metal
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NA2.15
Cesium Metal
0.62 2.48
5.3.5 Allen Electronegativity
1.652.01
Cesium Metal
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
1.801.98
Gold Metal
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
840.00 kJ/mol703.00 kJ/mol
Cesium Metal
375.7 26130
5.5.2 2nd Energy Level
1,309.80 kJ/mol1,610.00 kJ/mol
Ruthenium Metal
710.2162 28750
5.5.3 3rd Energy Level
1,600.00 kJ/mol2,466.00 kJ/mol
Tin
1600 34230
5.5.4 4th Energy Level
NA4,370.00 kJ/mol
Thorium Metal
2780 37066
5.5.5 5th Energy Level
NA5,400.00 kJ/mol
Dubnium Metal
4305.2 97510
5.5.6 6th Energy Level
NA8,520.00 kJ/mol
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
1.77 g/amp-hr2.60 g/amp-hr
Beryllium Metal
0.16812 8.3209
5.7 Electron Work Function
4.83 eV4.22 eV
Cesium Metal
2.14 5.65
5.8 Other Chemical Properties
Chemical Stability, Ionization, Solubility
Ionization, Radioactive Isotopes, Solubility
6 Atomic
6.1 Atomic Number
7683
Lithium Metal
3 117
6.2 Electron Configuration
[Xe] 4f14 5d6 6s2
[Xe] 4f14 5d10 6s2 6p3
6.3 Crystal Structure
Hexagonal Close Packed (HCP)
Rhombohedral (RHO)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
7683
Lithium Metal
3 117
6.4.2 Number of Neutrons
114126
Lithium Metal
4 184
6.4.3 Number of Electrons
7683
Lithium Metal
3 117
6.5 Radius of an Atom
6.5.1 Atomic Radius
133.80 pm156.00 pm
Beryllium Metal
112 265
6.5.2 Covalent Radius
NA148.00 pm
Beryllium Metal
96 260
6.5.3 Van der Waals Radius
216.00 pm207.00 pm
Zinc Metal
139 348
6.6 Atomic Weight
190.23 amu208.98 amu
Lithium Metal
6.94 294
6.7 Atomic Volume
8.49 cm3/mol21.30 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
91.40 (-eV)41.90 (-eV)
Francium Metal
8 392.42
6.10 Lattice Constant
273.44 pm667.40 pm
Beryllium Metal
228.58 891.25
6.11 Lattice Angles
π/2, π/2, 2 π/3
NA
6.12 Lattice C/A Ratio
1.58NA
Beryllium Metal
1.567 1.886
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
22.59 g/cm39.78 g/cm3
Lithium Metal
0.534 40.7
7.1.2 Density When Liquid (at m.p.)
20.00 g/cm310.05 g/cm3
Lithium Metal
0.512 20
7.2 Tensile Strength
1,000.00 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
NANA
Cerium Metal
2.47E-11 121
7.4.2 Vapor Pressure at 2000 K
0.00 (Pa)NA
Tungsten Metal
2.62E-10 774
7.5 Elasticity properties
7.5.1 Shear Modulus
222.00 GPa12.00 GPa
Potassium Metal
1.3 222
7.5.2 Bulk Modulus
462.00 GPa31.00 GPa
Cesium Metal
1.6 462
7.5.3 Young's Modulus
NA32.00 GPa
Cesium Metal
1.7 528
7.6 Poisson Ratio
0.250.33
Beryllium Metal
0.032 0.47
7.7 Other Mechanical Properties
Ductile
NA
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
22.579.79
Lithium Metal
0.53 4500
8.1.2 Magnetic Ordering
Paramagnetic
Diamagnetic
8.1.3 Permeability
NA0.00 H/m
Copper
1.25643E-06 0.0063
8.1.4 Susceptibility
NA0.00
Aluminium
-0.000166 200000
8.2 Electrical Properties
8.2.1 Electrical Property
Conductor
Semiconductor
8.2.2 Resistivity
81.20 nΩ·m1.29 nΩ·m
Thallium Metal
0.18 961
8.2.3 Electrical Conductivity
0.11 106/cm Ω0.01 106/cm Ω
Plutonium Metal
0.00666 0.63
8.2.4 Electron Affinity
106.10 kJ/mol91.20 kJ/mol
Mercury Metal
0 222.8
9 Thermal
9.1 Specific Heat
0.13 J/(kg K)0.12 J/(kg K)
Americium Metal
0.11 3.6
9.2 Molar Heat Capacity
24.70 J/mol·K25.52 J/mol·K
Beryllium Metal
16.443 62.7
9.3 Thermal Conductivity
87.60 W/m·K7.97 W/m·K
Neptunium Metal
6.3 429
9.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
9.5 Thermal Expansion
5.10 µm/(m·K)13.40 µm/(m·K)
Tungsten Metal
4.5 97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
627.60 kJ/mol151.00 kJ/mol
Zinc Metal
7.32 799.1
9.6.2 Enthalpy of Fusion
29.30 kJ/mol10.90 kJ/mol
Cesium Metal
2.1 35.23
9.6.3 Enthalpy of Atomization
669.00 kJ/mol207.10 kJ/mol
Mercury Metal
61.5 837
9.7 Standard Molar Entropy
32.60 J/mol.K56.70 J/mol.K
Beryllium Metal
9.5 198.1