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Plutonium
Plutonium

Hafnium
Hafnium



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Plutonium Hafnium Comparison

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1 Periodic Table
1.1 Symbol
Pu
Hf
1.2 Group Number
04
Gadolinium Metal
0 17
1.3 Period Number
76
Lithium Metal
2 7
1.4 Block
f block
d block
1.5 Element Family
Actinide
Transition Metal
1.6 CAS Number
74400757440586
Aluminium Metal
7429905 54386242
1.7 Space Group Name
P121/m1
P63/mmc
1.8 Space Group Number
11.00194.00
Uranium
11 229
2 Facts
2.1 Interesting Facts
  • Plutonium metal if obtain from ores of uranium metal.
  • Plutonium metal is very sensitive to the change in atmospheric conditions like temperature and pressure.
  • Hafnium metal is highly reactive, hence not found free in nature.
  • Hafnium metal as predicated after Mendeleev finished his periodic table.
2.2 Sources
Mining, Ores of metals
By-product Zirconium Refining
2.3 History
2.3.1 Who Discovered
Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan
Dirk Coster and George de Hevesy
2.3.2 Discovery
In Between 1940 1941
In 1922
2.4 Abundance
2.4.1 Abundance In Universe
NA7 * 10-8 %
Thallium Metal
5E-09 0.11
2.4.2 Abundance In Sun
~-9999 %~0.0000001 %
Beryllium Metal
1E-08 0.1
2.4.3 Abundance In Meteorites
NA0.00 %
Gold Metal
1.7E-07 22
2.4.4 Abundance In Earth's Crust
NA0.00 %
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
  • Plutonium was used in atomic bombs and still it is being used in various weapons and Ammunition industry.
  • It is also used in nuclear power plant as source of energy for space missions.
  • 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
Aerospace Industry, Ammunition Industry
Ammunition Industry
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Alloys
Alloys, In Nuclear Reactors, Nuclear Research, Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
Toxic
Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-3NA
Tin
0 1970
3.2.4 In Bone
0.00 p.p.m.NA
Tin
0 170000
4 Physical
4.1 Melting Point
639.50 °C2,150.00 °C
Francium Metal
27 3410
4.2 Boiling Point
3,235.00 °C5,400.00 °C
Flerovium Metal
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silvery White
Gray
4.3.3 Luster
NA
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
NA5.50
Cesium Metal
0.2 8.5
4.4.2 Brinell Hardness
NA1,450.00 MPa
Cesium Metal
0.14 3490
4.4.3 Vickers Hardness
NA1,520.00 MPa
Palladium Metal
121 3430
4.5 Speed of Sound
2,260.00 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
Pu
Hf
5.2 Isotopes
5.2.1 Known Isotopes
2032
Tennessine Metal
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
1.281.30
Francium Metal
0.7 2.54
5.3.2 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.221.23
Cesium Metal
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
5.3.5 Allen Electronegativity
NA1.16
Cesium Metal
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
2.722.70
Gold Metal
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
584.70 kJ/mol658.50 kJ/mol
Cesium Metal
375.7 26130
5.5.2 2nd Energy Level
1,128.00 kJ/mol1,440.00 kJ/mol
Ruthenium Metal
710.2162 28750
5.5.3 3rd Energy Level
2,084.00 kJ/mol2,250.00 kJ/mol
Osmium Metal
1600 34230
5.5.4 4th Energy Level
3,338.00 kJ/mol3,216.00 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
2.28 g/amp-hr1.66 g/amp-hr
Beryllium Metal
0.16812 8.3209
5.7 Electron Work Function
NA3.90 eV
Cesium Metal
2.14 5.65
5.8 Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
6 Atomic
6.1 Atomic Number
9472
Lithium Metal
3 117
6.2 Electron Configuration
[Rn] 5f6 7s2
[Xe] 4f14 5d2 6s2
6.3 Crystal Structure
Monoclinic (MON)
Hexagonal Close Packed (HCP)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
9472
Lithium Metal
3 117
6.4.2 Number of Neutrons
150106
Lithium Metal
4 184
6.4.3 Number of Electrons
9472
Lithium Metal
3 117
6.5 Radius of an Atom
6.5.1 Atomic Radius
159.00 pm159.00 pm
Beryllium Metal
112 265
6.5.2 Covalent Radius
187.00 pm175.00 pm
Beryllium Metal
96 260
6.5.3 Van der Waals Radius
200.00 pm200.00 pm
Zinc Metal
139 348
6.6 Atomic Weight
244.00 amu178.49 amu
Lithium Metal
6.94 294
6.7 Atomic Volume
12.32 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
64.90 (-eV)81.00 (-eV)
Francium Metal
8 392.42
6.10 Lattice Constant
618.30 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
19.82 g/cm313.31 g/cm3
Lithium Metal
0.534 40.7
7.1.2 Density When Liquid (at m.p.)
16.63 g/cm312.00 g/cm3
Lithium Metal
0.512 20
7.2 Tensile Strength
NA445.00 MPa
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
0.00 (Pa)NA
Cerium Metal
2.47E-11 121
7.4.2 Vapor Pressure at 2000 K
2.20 (Pa)0.00 (Pa)
Tungsten Metal
2.62E-10 774
7.5 Elasticity properties
7.5.1 Shear Modulus
43.00 GPa30.00 GPa
Potassium Metal
1.3 222
7.5.2 Bulk Modulus
NA110.00 GPa
Cesium Metal
1.6 462
7.5.3 Young's Modulus
96.00 GPa78.00 GPa
Cesium Metal
1.7 528
7.6 Poisson Ratio
0.210.37
Beryllium Metal
0.032 0.47
7.7 Other Mechanical Properties
Ductile, Malleable
Ductile, Malleable
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
19.8413.31
Lithium Metal
0.53 4500
8.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
8.1.3 Permeability
NANA
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
Poor Conductor
Conductor
8.2.2 Resistivity
1.46 nΩ·m331.00 nΩ·m
Thallium Metal
0.18 961
8.2.3 Electrical Conductivity
0.01 106/cm Ω0.03 106/cm Ω
Palladium
0.00666 0.63
8.2.4 Electron Affinity
NA0.00 kJ/mol
Mercury Metal
0 222.8
9 Thermal
9.1 Specific Heat
0.13 J/(kg K)0.14 J/(kg K)
Americium Metal
0.11 3.6
9.2 Molar Heat Capacity
35.50 J/mol·K25.73 J/mol·K
Beryllium Metal
16.443 62.7
9.3 Thermal Conductivity
6.74 W/m·K23.00 W/m·K
Neptunium Metal
6.3 429
9.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
9.5 Thermal Expansion
46.70 µm/(m·K)5.90 µm/(m·K)
Tungsten Metal
4.5 97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
344.00 kJ/mol661.10 kJ/mol
Zinc Metal
7.32 799.1
9.6.2 Enthalpy of Fusion
2.82 kJ/mol25.10 kJ/mol
Cesium Metal
2.1 35.23
9.6.3 Enthalpy of Atomization
360.00 kJ/mol703.00 kJ/mol
Mercury Metal
61.5 837
9.7 Standard Molar Entropy
NA43.60 J/mol.K
Beryllium Metal
9.5 198.1