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Bismuth
Bismuth

Osmium
Osmium



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Bismuth vs Osmium

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1 Periodic Table
1.1 Symbol
Bi
Os
1.2 Group Number
158
Gadolinium
0 17
1.4 Period Number
66
Lithium
2 7
1.6 Block
p block
d block
1.7 Element Family
Post-​Transition
Transition Metal
1.8 CAS Number
74406997440042
Aluminium
7429905 54386242
2.3 Space Group Name
C12/m1
P63/mmc
2.4 Space Group Number
12.00194.00
Plutonium
11 229
3 Facts
3.1 Interesting Facts
  • 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.
  • Osmium metal does not oxidize in air unless it is heated.
  • But if it heated den it forms Osmium Tetroxide, which is highly toxic.
3.2 Sources
Found in Minerals, Mining, Ores of Minerals
Found As a By-product, Found in Minerals, Mining
3.3 History
3.3.1 Who Discovered
Claude François Geoffroy
Smithson Tennant
3.3.2 Discovery
In 1753
In 1803
3.4 Abundance
3.4.1 Abundance In Universe
7 * 10-8 %3 * 10-7 %
Thallium
5E-09 0.11
3.4.3 Abundance In Sun
~0.000006 %~0.0000002 %
Beryllium
1E-08 0.1
3.4.5 Abundance In Meteorites
0.00 %0.00 %
Gold
1.7E-07 22
3.4.7 Abundance In Earth's Crust
0.00 %0.00 %
Radium
9.9E-12 8.1
3.4.9 Abundance In Oceans
0.00 %NA
Protactinium
2E-23 1.1
3.5.2 Abundance In Humans
NANA
Radium
1E-13 1.4
4 Uses
4.1 Uses & Benefits
  • 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.
  • 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.
4.1.1 Industrial Uses
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
4.1.2 Medical Uses
Pharmaceutical Industry
NA
4.1.3 Other Uses
Alloys
Alloys
4.2 Biological Properties
4.2.1 Toxicity
Low Toxic
Highly Toxic
4.2.2 Present in Human Body
4.2.3 In Blood
0.02 Blood/mg dm-3NA
Plutonium
0 1970
4.2.6 In Bone
0.20 p.p.m.NA
Plutonium
0 170000
5 Physical
5.1 Melting Point
271.30 °C3,045.00 °C
Francium
27 3410
5.2 Boiling Point
1,560.00 °C5,027.00 °C
Flerovium
147 5660
5.3 Appearance
5.3.1 Physical State
Solid
Solid
5.3.2 Color
Silver
Silvery Bluish-Gray
5.3.3 Luster
Metallic
Metallic
5.4 Hardness
5.4.1 Mohs Hardness
2.257.00
Cesium
0.2 8.5
5.4.3 Brinell Hardness
70.00 MPa3,490.00 MPa
Cesium
0.14 3490
5.4.5 Vickers Hardness
NANA
Palladium
121 3430
5.5 Speed of Sound
1,790.00 m/s4,940.00 m/s
Thallium
818 16200
5.6 Optical Properties
5.6.1 Refractive Index
NANA
Mercury
1.000933 1.7229
5.6.2 Reflectivity
NANA
Molybdenum
58 97
5.7 Allotropes
5.7.1 α Allotropes
Not Available
Not Available
5.7.2 β Allotropes
Not Available
Not Available
5.7.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
Bi
Os
6.2 Isotopes
6.2.1 Known Isotopes
3335
Tennessine
0 38
6.3 Electronegativity
6.3.1 Pauling Electronegativity
2.022.20
Francium
0.7 2.54
6.3.3 Sanderson Electronegativity
2.34NA
Cesium
0.22 2.56
6.3.6 Allred Rochow Electronegativity
1.671.52
Cesium
0.86 1.82
6.3.8 Mulliken-Jaffe Electronegativity
2.15NA
Cesium
0.62 2.48
6.3.10 Allen Electronegativity
2.011.65
Cesium
0.659 2.7
6.4 Electropositivity
6.4.1 Pauling Electropositivity
1.981.80
Gold
1.46 3.3
6.5 Ionization Energies
6.5.1 1st Energy Level
703.00 kJ/mol840.00 kJ/mol
Cesium
375.7 26130
6.5.3 2nd Energy Level
1,610.00 kJ/mol1,309.80 kJ/mol
Ruthenium
710.2162 28750
6.5.5 3rd Energy Level
2,466.00 kJ/mol1,600.00 kJ/mol
Tin
1600 34230
6.5.8 4th Energy Level
4,370.00 kJ/molNA
Thorium
2780 37066
6.5.10 5th Energy Level
5,400.00 kJ/molNA
Dubnium
4305.2 97510
6.5.12 6th Energy Level
8,520.00 kJ/molNA
Seaborgium
5715.8 105800
6.5.15 7th Energy level
NANA
Bohrium
7226.8 114300
6.6.1 8th Energy Level
NANA
Hassium
8857.4 125300
6.6.2 9th Energy Level
NANA
Yttrium
14110 134700
6.7.1 10th Energy Level
NANA
Strontium
17100 144300
7.1.1 11th Energy Level
NANA
Yttrium
19900 169988
7.4.2 12th Energy Level
NANA
Molybdenum
22219 189368
7.4.3 13th Energy Level
NANA
Molybdenum
26930 76015
7.4.5 14th Energy Level
NANA
Molybdenum
29196 86450
7.4.7 15th Energy Level
NANA
Manganese
41987 97510
7.4.8 16th Energy Level
NANA
Iron
47206 109480
7.5.2 17th Energy Level
NANA
Cobalt
52737 122200
7.5.4 18th Energy Level
NANA
Nickel
58570 134810
7.5.6 19th Energy Level
NANA
Copper
64702 148700
7.6.1 20th Energy Level
NANA
Molybdenum
80400 171200
7.6.2 21st Energy Level
NANA
Molybdenum
87000 179100
7.6.3 22nd Energy Level
NANA
Molybdenum
93400 184900
7.7.1 23rd Energy Level
NANA
Molybdenum
98420 198800
7.7.2 24th Energy Level
NANA
Molybdenum
104400 195200
7.7.3 25th Energy Level
NANA
Molybdenum
121900 121900
7.9.1 26th Energy Level
NANA
Molybdenum
127700 127700
7.10.1 27th Energy Level
NANA
Molybdenum
133800 133800
7.10.2 28th Energy Level
NANA
Molybdenum
139800 139800
7.12.1 29th Energy Level
NANA
Molybdenum
148100 148100
8.1.2 30th Energy Level
NANA
Molybdenum
154500 154500
8.2 Electrochemical Equivalent
2.60 g/amp-hr1.77 g/amp-hr
Beryllium
0.16812 8.3209
8.3 Electron Work Function
4.22 eV4.83 eV
Cesium
2.14 5.65
8.5 Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Chemical Stability, Ionization, Solubility
9 Atomic
9.1 Atomic Number
8376
Lithium
3 117
9.4 Electron Configuration
[Xe] 4f14 5d10 6s2 6p3
[Xe] 4f14 5d6 6s2
9.5 Crystal Structure
Rhombohedral (RHO)
Hexagonal Close Packed (HCP)
9.5.1 Crystal Lattice
9.6 Atom
9.6.1 Number of Protons
8376
Lithium
3 117
9.6.3 Number of Neutrons
126114
Lithium
4 184
9.7.2 Number of Electrons
8376
Lithium
3 117
9.8 Radius of an Atom
9.8.1 Atomic Radius
156.00 pm133.80 pm
Beryllium
112 265
9.8.3 Covalent Radius
148.00 pmNA
Beryllium
96 260
9.9.1 Van der Waals Radius
207.00 pm216.00 pm
Zinc
139 348
10.2 Atomic Weight
208.98 amu190.23 amu
Lithium
6.94 294
10.3 Atomic Volume
21.30 cm3/mol8.49 cm3/mol
Manganese
1.39 71.07
10.4 Adjacent Atomic Numbers
10.4.1 Previous Element
10.4.2 Next Element
10.5 Valence Electron Potential
41.90 (-eV)91.40 (-eV)
Francium
8 392.42
10.7 Lattice Constant
667.40 pm273.44 pm
Beryllium
228.58 891.25
10.8 Lattice Angles
NA
π/2, π/2, 2 π/3
10.9 Lattice C/A Ratio
NA1.58
Beryllium
1.567 1.886
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
9.78 g/cm322.59 g/cm3
Lithium
0.534 40.7
12.1.1 Density When Liquid (at m.p.)
10.05 g/cm320.00 g/cm3
Lithium
0.512 20
12.3 Tensile Strength
NA1,000.00 MPa
Indium
2.5 11000
12.5 Viscosity
NANA
Mercury
0.001526 0.001526
12.6 Vapor Pressure
12.6.1 Vapor Pressure at 1000 K
NANA
Cerium
2.47E-11 121
12.7.1 Vapor Pressure at 2000 K
NA0.00 (Pa)
Tungsten
2.62E-10 774
12.9 Elasticity properties
12.9.1 Shear Modulus
12.00 GPa222.00 GPa
Potassium
1.3 222
12.10.2 Bulk Modulus
31.00 GPa462.00 GPa
Cesium
1.6 462
12.10.3 Young's Modulus
32.00 GPaNA
Cesium
1.7 528
12.11 Poisson Ratio
0.330.25
Beryllium
0.032 0.47
12.12 Other Mechanical Properties
NA
Ductile
13 Magnetic
13.1 Magnetic Characteristics
13.1.1 Specific Gravity
9.7922.57
Lithium
0.53 4500
13.2.1 Magnetic Ordering
Diamagnetic
Paramagnetic
13.2.2 Permeability
0.00 H/mNA
Copper
1.25643E-06 0.0063
13.2.3 Susceptibility
0.00NA
Aluminium
-0.000166 200000
13.3 Electrical Properties
13.3.1 Electrical Property
Semiconductor
Conductor
13.3.2 Resistivity
1.29 nΩ·m81.20 nΩ·m
Thallium
0.18 961
13.3.3 Electrical Conductivity
0.01 106/cm Ω0.11 106/cm Ω
Plutonium
0.00666 0.63
13.3.4 Electron Affinity
91.20 kJ/mol106.10 kJ/mol
Mercury
0 222.8
14 Thermal
14.1 Specific Heat
0.12 J/(kg K)0.13 J/(kg K)
Americium
0.11 3.6
14.2 Molar Heat Capacity
25.52 J/mol·K24.70 J/mol·K
Beryllium
16.443 62.7
14.3 Thermal Conductivity
7.97 W/m·K87.60 W/m·K
Neptunium
6.3 429
14.4 Critical Temperature
NANA
Ytterbium
26.3 3223
14.5 Thermal Expansion
13.40 µm/(m·K)5.10 µm/(m·K)
Tungsten
4.5 97
14.6 Enthalpy
14.6.1 Enthalpy of Vaporization
151.00 kJ/mol627.60 kJ/mol
Zinc
7.32 799.1
1.4.2 Enthalpy of Fusion
10.90 kJ/mol29.30 kJ/mol
Cesium
2.1 35.23
1.4.3 Enthalpy of Atomization
207.10 kJ/mol669.00 kJ/mol
Mercury
61.5 837
1.5 Standard Molar Entropy
56.70 J/mol.K32.60 J/mol.K
Beryllium
9.5 198.1