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Bismuth
Bismuth

Hafnium
Hafnium



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Bismuth Hafnium Comparison

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1 Periodic Table
1.1 Symbol
Bi
Hf
1.2 Group Number
154
Gadolinium Metal
0 17
1.3 Period Number
66
Lithium Metal
2 7
1.4 Block
p block
d block
1.5 Element Family
Post-​Transition
Transition Metal
1.6 CAS Number
74406997440586
Aluminium Metal
7429905 54386242
1.7 Space Group Name
C12/m1
P63/mmc
1.8 Space Group Number
12.00194.00
Plutonium Metal
11 229
2 Facts
2.1 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.
  • Hafnium metal is highly reactive, hence not found free in nature.
  • Hafnium metal as predicated after Mendeleev finished his periodic table.
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
By-product Zirconium Refining
2.3 History
2.3.1 Who Discovered
Claude François Geoffroy
Dirk Coster and George de Hevesy
2.3.2 Discovery
In 1753
In 1922
2.4 Abundance
2.4.1 Abundance In Universe
7 * 10-8 %7 * 10-8 %
Thallium Metal
5E-09 0.11
2.4.2 Abundance In Sun
~0.000006 %~0.0000001 %
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
0.00 %0.00 %
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
  • 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.
  • It has an ability to absorb neutrons and hence it is used to make control rods in nuclear submarines. And this metal is also used in Plasma welding torches.
  • It alloys with iron, titanium and niobium are very useful.
3.1.1 Industrial Uses
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Ammunition Industry
3.1.2 Medical Uses
Pharmaceutical Industry
NA
3.1.3 Other Uses
Alloys
Alloys, In Nuclear Reactors, Nuclear Research, Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
Low Toxic
Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
0.02 Blood/mg dm-3NA
Plutonium Metal
0 1970
3.2.4 In Bone
0.20 p.p.m.NA
Plutonium Metal
0 170000
4 Physical
4.1 Melting Point
271.30 °C2,150.00 °C
Francium Metal
27 3410
4.2 Boiling Point
1,560.00 °C5,400.00 °C
Flerovium Metal
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silver
Gray
4.3.3 Luster
Metallic
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
2.255.50
Cesium Metal
0.2 8.5
4.4.2 Brinell Hardness
70.00 MPa1,450.00 MPa
Cesium Metal
0.14 3490
4.4.3 Vickers Hardness
NA1,520.00 MPa
Palladium Metal
121 3430
4.5 Speed of Sound
1,790.00 m/s3,010.00 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
Bi
Hf
5.2 Isotopes
5.2.1 Known Isotopes
3332
Tennessine Metal
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
2.021.30
Francium Metal
0.7 2.54
5.3.2 Sanderson Electronegativity
2.34NA
Cesium Metal
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.671.23
Cesium Metal
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
2.15NA
Cesium Metal
0.62 2.48
5.3.5 Allen Electronegativity
2.011.16
Cesium Metal
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
1.982.70
Gold Metal
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
703.00 kJ/mol658.50 kJ/mol
Cesium Metal
375.7 26130
5.5.2 2nd Energy Level
1,610.00 kJ/mol1,440.00 kJ/mol
Ruthenium Metal
710.2162 28750
5.5.3 3rd Energy Level
2,466.00 kJ/mol2,250.00 kJ/mol
Osmium Metal
1600 34230
5.5.4 4th Energy Level
4,370.00 kJ/mol3,216.00 kJ/mol
Thorium Metal
2780 37066
5.5.5 5th Energy Level
5,400.00 kJ/molNA
Dubnium Metal
4305.2 97510
5.5.6 6th Energy Level
8,520.00 kJ/molNA
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
2.60 g/amp-hr1.66 g/amp-hr
Beryllium Metal
0.16812 8.3209
5.7 Electron Work Function
4.22 eV3.90 eV
Cesium Metal
2.14 5.65
5.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
6 Atomic
6.1 Atomic Number
8372
Lithium Metal
3 117
6.2 Electron Configuration
[Xe] 4f14 5d10 6s2 6p3
[Xe] 4f14 5d2 6s2
6.3 Crystal Structure
Rhombohedral (RHO)
Hexagonal Close Packed (HCP)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
8372
Lithium Metal
3 117
6.4.2 Number of Neutrons
126106
Lithium Metal
4 184
6.4.3 Number of Electrons
8372
Lithium Metal
3 117
6.5 Radius of an Atom
6.5.1 Atomic Radius
156.00 pm159.00 pm
Beryllium Metal
112 265
6.5.2 Covalent Radius
148.00 pm175.00 pm
Beryllium Metal
96 260
6.5.3 Van der Waals Radius
207.00 pm200.00 pm
Zinc Metal
139 348
6.6 Atomic Weight
208.98 amu178.49 amu
Lithium Metal
6.94 294
6.7 Atomic Volume
21.30 cm3/mol13.60 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
41.90 (-eV)81.00 (-eV)
Francium Metal
8 392.42
6.10 Lattice Constant
667.40 pm319.64 pm
Beryllium Metal
228.58 891.25
6.11 Lattice Angles
NA
π/2, π/2, 2 π/3
6.12 Lattice C/A Ratio
NA1.58
Beryllium Metal
1.567 1.886
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
9.78 g/cm313.31 g/cm3
Lithium Metal
0.534 40.7
1.4.2 Density When Liquid (at m.p.)
10.05 g/cm312.00 g/cm3
Lithium Metal
0.512 20
1.5 Tensile Strength
NA445.00 MPa
Indium Metal
2.5 11000
1.6 Viscosity
NANA
Mercury Metal
0.001526 0.001526
1.7 Vapor Pressure
1.7.1 Vapor Pressure at 1000 K
NANA
Cerium Metal
2.47E-11 121
1.7.2 Vapor Pressure at 2000 K
NA0.00 (Pa)
Tungsten Metal
2.62E-10 774
1.8 Elasticity properties
1.8.1 Shear Modulus
12.00 GPa30.00 GPa
Potassium Metal
1.3 222
1.8.2 Bulk Modulus
31.00 GPa110.00 GPa
Cesium Metal
1.6 462
1.8.4 Young's Modulus
32.00 GPa78.00 GPa
Cesium Metal
1.7 528
1.9 Poisson Ratio
0.330.37
Beryllium Metal
0.032 0.47
1.10 Other Mechanical Properties
NA
Ductile, Malleable
2 Magnetic
2.1 Magnetic Characteristics
2.1.1 Specific Gravity
9.7913.31
Lithium Metal
0.53 4500
2.1.2 Magnetic Ordering
Diamagnetic
Paramagnetic
2.1.3 Permeability
0.00 H/mNA
Copper
1.25643E-06 0.0063
2.1.4 Susceptibility
0.00NA
Aluminium
-0.000166 200000
2.2 Electrical Properties
2.2.1 Electrical Property
Semiconductor
Conductor
2.2.2 Resistivity
1.29 nΩ·m331.00 nΩ·m
Thallium Metal
0.18 961
2.2.3 Electrical Conductivity
0.01 106/cm Ω0.03 106/cm Ω
Plutonium Metal
0.00666 0.63
2.2.4 Electron Affinity
91.20 kJ/mol0.00 kJ/mol
Mercury Metal
0 222.8
3 Thermal
3.1 Specific Heat
0.12 J/(kg K)0.14 J/(kg K)
Americium Metal
0.11 3.6
3.2 Molar Heat Capacity
25.52 J/mol·K25.73 J/mol·K
Beryllium Metal
16.443 62.7
3.3 Thermal Conductivity
7.97 W/m·K23.00 W/m·K
Neptunium Metal
6.3 429
3.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
3.5 Thermal Expansion
13.40 µm/(m·K)5.90 µm/(m·K)
Tungsten Metal
4.5 97
3.6 Enthalpy
3.6.1 Enthalpy of Vaporization
151.00 kJ/mol661.10 kJ/mol
Zinc Metal
7.32 799.1
3.6.2 Enthalpy of Fusion
10.90 kJ/mol25.10 kJ/mol
Cesium Metal
2.1 35.23
3.6.3 Enthalpy of Atomization
207.10 kJ/mol703.00 kJ/mol
Mercury Metal
61.5 837
3.7 Standard Molar Entropy
56.70 J/mol.K43.60 J/mol.K
Beryllium Metal
9.5 198.1