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Tungsten
Tungsten

Polonium
Polonium



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Tungsten vs Polonium

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1 Periodic Table
1.1 Symbol
W
Po
1.2 Group Number
616
Gadolinium
0 17
1.3 Period Number
66
Lithium
2 7
1.4 Block
d block
p block
1.5 Element Family
Transition Metal
Post-​Transition
1.6 CAS Number
74403377440086
Aluminium
7429905 54386242
1.7 Space Group Name
Im_ 3m
Pm-3m
1.8 Space Group Number
229.00221.00
Plutonium
11 229
2 Facts
2.1 Interesting Facts
  • Tungsten element has the second highest melting point.
  • Pure tungsten can easily cut down with the help of hacksaw.
  • Polonium was the first radioactive element to be discovered.
  • Polonium element and its compounds are highly radioactive.
  • Its alloy with Beryllium provides source of neutrons.
2.2 Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Mining, Ores of metals
2.3 History
2.3.1 Who Discovered
Not Available
Pierre Curie and Marie Curie
2.3.2 Discovery
In 1781
In 1898
2.4 Abundance
2.4.1 Abundance In Universe
5 * 10-8 %NA
Thallium
5E-09 0.11
2.4.2 Abundance In Sun
~0.0000004 %~-9999 %
Beryllium
1E-08 0.1
2.4.3 Abundance In Meteorites
0.00 %NA
Gold
1.7E-07 22
2.4.4 Abundance In Earth's Crust
0.00 %NA
Radium
9.9E-12 8.1
2.4.5 Abundance In Oceans
0.00 %0.00 %
Protactinium
2E-23 1.1
2.4.6 Abundance In Humans
NANA
Radium
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Tungsten and its alloys are used in high-temperature applications like welding electrodes, high-temperature furnace, etc.
  • Tungsten carbide is very hard and used in metal working, mining and petroleum industry.
  • Polonium metal has different Allotropes, it is used in antistatic devices and for research purpose.
  • A 1 gram of Polonium can reach a temperature of 500°C, hence it is used as a heat source for space equipment.
3.1.1 Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
Aerospace Industry, Ammunition Industry
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Alloys
Alloys
3.2 Biological Properties
3.2.1 Toxicity
Non Toxic
Highly Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
Plutonium
0 1970
3.2.4 In Bone
0.00 p.p.m.0.00 p.p.m.
Plutonium
0 170000
4 Physical
4.1 Melting Point
3,410.00 °C254.00 °C
Francium
27 3410
4.2 Boiling Point
5,660.00 °C962.00 °C
Flerovium
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Grayish White
Silver
4.3.3 Luster
Lustrous
NA
4.4 Hardness
4.4.1 Mohs Hardness
7.50NA
Cesium
0.2 8.5
4.4.2 Brinell Hardness
2,000.00 MPaNA
Cesium
0.14 3490
4.4.3 Vickers Hardness
3,430.00 MPaNA
Palladium
121 3430
4.5 Speed of Sound
4,620.00 m/sNA
Thallium
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
NANA
Mercury
1.000933 1.7229
4.6.2 Reflectivity
62.00 %NA
Molybdenum
58 97
4.7 Allotropes
4.7.1 α Allotropes
Not Available
α-polonium
4.7.2 β Allotropes
Not Available
β-polonium
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
W
Po
5.2 Isotopes
5.2.1 Known Isotopes
3329
Tennessine
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
2.362.00
Francium
0.7 2.54
5.3.2 Sanderson Electronegativity
0.98NA
Cesium
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.401.76
Cesium
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NA2.48
Cesium
0.62 2.48
5.3.5 Allen Electronegativity
1.472.19
Cesium
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
1.642.00
Gold
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
770.00 kJ/mol812.10 kJ/mol
Cesium
375.7 26130
5.5.2 2nd Energy Level
1,700.00 kJ/molNA
Ruthenium
710.2162 28750
5.5.3 3rd Energy Level
NANA
Osmium
1600 34230
1.2.1 4th Energy Level
NANA
Thorium
2780 37066
1.3.1 5th Energy Level
NANA
Dubnium
4305.2 97510
1.6.1 6th Energy Level
NANA
Seaborgium
5715.8 105800
1.7.0 7th Energy level
NANA
Bohrium
7226.8 114300
1.8.1 8th Energy Level
NANA
Hassium
8857.4 125300
2.4.2 9th Energy Level
NANA
Yttrium
14110 134700
2.4.3 10th Energy Level
NANA
Strontium
17100 144300
2.4.5 11th Energy Level
NANA
Yttrium
19900 169988
2.4.7 12th Energy Level
NANA
Molybdenum
22219 189368
2.4.9 13th Energy Level
NANA
Molybdenum
26930 76015
2.4.11 14th Energy Level
NANA
Molybdenum
29196 86450
2.4.13 15th Energy Level
NANA
Manganese
41987 97510
3.2.4 16th Energy Level
NANA
Iron
47206 109480
3.2.6 17th Energy Level
NANA
Cobalt
52737 122200
4.1.1 18th Energy Level
NANA
Nickel
58570 134810
4.1.2 19th Energy Level
NANA
Copper
64702 148700
4.2.1 20th Energy Level
NANA
Molybdenum
80400 171200
4.4.2 21st Energy Level
NANA
Molybdenum
87000 179100
4.4.3 22nd Energy Level
NANA
Molybdenum
93400 184900
4.4.5 23rd Energy Level
NANA
Molybdenum
98420 198800
4.4.6 24th Energy Level
NANA
Molybdenum
104400 195200
4.4.8 25th Energy Level
NANA
Molybdenum
121900 121900
4.4.9 26th Energy Level
NANA
Molybdenum
127700 127700
4.5.1 27th Energy Level
NANA
Molybdenum
133800 133800
4.5.2 28th Energy Level
NANA
Molybdenum
139800 139800
4.6.2 29th Energy Level
NANA
Molybdenum
148100 148100
4.6.4 30th Energy Level
NANA
Molybdenum
154500 154500
5.3 Electrochemical Equivalent
1.14 g/amp-hr3.90 g/amp-hr
Beryllium
0.16812 8.3209
5.5 Electron Work Function
4.55 eVNA
Cesium
2.14 5.65
5.6 Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Solubility
6 Atomic
6.1 Atomic Number
7484
Lithium
3 117
6.2 Electron Configuration
[Xe] 4f14 5d4 6s2
[Xe] 4f14 5d10 6s2 6p4
6.3 Crystal Structure
Body Centered Cubic (BCC)
Monoclinic (MON)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
7484
Lithium
3 117
6.4.3 Number of Neutrons
110125
Lithium
4 184
6.4.5 Number of Electrons
7484
Lithium
3 117
6.6 Radius of an Atom
6.6.1 Atomic Radius
139.00 pm168.00 pm
Beryllium
112 265
6.7.2 Covalent Radius
162.00 pm140.00 pm
Beryllium
96 260
6.7.4 Van der Waals Radius
200.00 pm197.00 pm
Zinc
139 348
6.8 Atomic Weight
183.84 amu209.00 amu
Lithium
6.94 294
6.9 Atomic Volume
9.53 cm3/mol22.23 cm3/mol
Manganese
1.39 71.07
6.10 Adjacent Atomic Numbers
6.10.1 Previous Element
6.10.2 Next Element
6.11 Valence Electron Potential
140.00 (-eV)NA
Francium
8 392.42
6.12 Lattice Constant
316.52 pm335.90 pm
Beryllium
228.58 891.25
6.13 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
6.14 Lattice C/A Ratio
NANA
Beryllium
1.567 1.886
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
19.25 g/cm39.20 g/cm3
Lithium
0.534 40.7
7.1.4 Density When Liquid (at m.p.)
17.60 g/cm39.40 g/cm3
Lithium
0.512 20
7.2 Tensile Strength
370.00 MPaNA
Indium
2.5 11000
7.3 Viscosity
NANA
Mercury
0.001526 0.001526
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
NANA
Cerium
2.47E-11 121
7.4.3 Vapor Pressure at 2000 K
0.00 (Pa)NA
Palladium
2.62E-10 774
7.5 Elasticity properties
7.5.1 Shear Modulus
161.00 GPaNA
Potassium
1.3 222
7.5.3 Bulk Modulus
310.00 GPaNA
Cesium
1.6 462
7.5.5 Young's Modulus
411.00 GPaNA
Cesium
1.7 528
7.6 Poisson Ratio
0.28NA
Beryllium
0.032 0.47
7.7 Other Mechanical Properties
Ductile, Malleable
NA
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
19.229.32
Lithium
0.53 4500
8.1.3 Magnetic Ordering
Paramagnetic
Nonmagnetic
8.1.4 Permeability
NANA
Bismuth
1.25643E-06 0.0063
8.1.6 Susceptibility
NANA
Bismuth
-0.000166 200000
8.2 Electrical Properties
8.2.1 Electrical Property
Superconductor
Conductor
8.2.2 Resistivity
52.80 nΩ·m0.40 nΩ·m
Thallium
0.18 961
8.2.4 Electrical Conductivity
0.19 106/cm Ω0.02 106/cm Ω
Plutonium
0.00666 0.63
8.2.7 Electron Affinity
78.60 kJ/mol183.30 kJ/mol
Mercury
0 222.8
9 Thermal
9.1 Specific Heat
0.13 J/(kg K)0.12 J/(kg K)
Americium
0.11 3.6
9.2 Molar Heat Capacity
24.27 J/mol·K26.40 J/mol·K
Beryllium
16.443 62.7
9.3 Thermal Conductivity
173.00 W/m·K20.00 W/m·K
Neptunium
6.3 429
9.5 Critical Temperature
NANA
Ytterbium
26.3 3223
9.7 Thermal Expansion
4.50 µm/(m·K)23.50 µm/(m·K)
Palladium
4.5 97
10.2 Enthalpy
10.2.1 Enthalpy of Vaporization
799.10 kJ/mol60.30 kJ/mol
Zinc
7.32 799.1
10.5.2 Enthalpy of Fusion
35.23 kJ/mol13.00 kJ/mol
Cesium
2.1 35.23
10.5.4 Enthalpy of Atomization
837.00 kJ/mol134.00 kJ/mol
Mercury
61.5 837
10.6 Standard Molar Entropy
32.60 J/mol.KNA
Beryllium
9.5 198.1