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Polonium
Polonium

Flerovium
Flerovium



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Polonium
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Flerovium

Polonium Flerovium Comparison

1 Periodic Table
1.1 Symbol
Po
Fl
1.2 Group Number
1614
Gadolinium Metal
0 17
1.3 Period Number
67
Lithium Metal
2 7
1.4 Block
p block
p block
1.5 Element Family
Post-​Transition
Post-​Transition
1.6 CAS Number
744008654085164
Aluminium Metal
7429905 54386242
4.2 Space Group Name
Pm-3m
Not Available
4.3 Space Group Number
221.00NA
Plutonium Metal
11 229
6 Facts
6.1 Interesting Facts
  • 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.
Not Available
7.2 Sources
Mining, Ores of metals
NA
7.4 History
7.4.1 Who Discovered
Pierre Curie and Marie Curie
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
7.4.2 Discovery
In 1898
In 1999
7.5 Abundance
7.5.1 Abundance In Universe
NANA
Thallium Metal
5E-09 0.11
1.14.3 Abundance In Sun
~-9999 %~-9999 %
Beryllium Metal
1E-08 0.1
1.16.4 Abundance In Meteorites
NANA
Gold Metal
1.7E-07 22
2.4.4 Abundance In Earth's Crust
NANA
Radium Metal
9.9E-12 8.1
2.5.5 Abundance In Oceans
0.00 %NA
Protactinium Metal
2E-23 1.1
2.6.5 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • 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.
  • Currently known uses of Flerovium metal are limited to research purpose only.
3.1.1 Industrial Uses
Aerospace Industry, Ammunition Industry
NA
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Alloys
Alloys, Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
Highly Toxic
Unknown
3.3.2 Present in Human Body
3.3.3 In Blood
0.00 Blood/mg dm-3NA
Plutonium Metal
0 1970
10.10.3 In Bone
0.00 p.p.m.NA
Plutonium Metal
0 170000
11 Physical
11.2 Melting Point
254.00 °C67.00 °C
Francium Metal
27 3410
11.7 Boiling Point
962.00 °C147.00 °C
Sodium
147 5660
11.10 Appearance
11.10.1 Physical State
Solid
Solid
11.10.2 Color
Silver
Unknown
11.10.3 Luster
NA
Unknown Luster
11.11 Hardness
11.11.1 Mohs Hardness
NANA
Cesium Metal
0.2 8.5
1.4.1 Brinell Hardness
NANA
Cesium Metal
0.14 3490
2.4.2 Vickers Hardness
NANA
Palladium Metal
121 3430
2.9 Speed of Sound
NANA
Thallium Metal
818 16200
4.2 Optical Properties
4.2.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
4.3.4 Reflectivity
NANA
Molybdenum Metal
58 97
4.7 Allotropes
4.7.1 α Allotropes
α-polonium
Not Available
4.7.2 β Allotropes
β-polonium
Not Available
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
Po
Fl
5.2 Isotopes
5.2.1 Known Isotopes
291
Tennessine Metal
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
2.00NA
Francium Metal
0.7 2.54
6.1.2 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
7.3.1 Allred Rochow Electronegativity
1.76NA
Cesium Metal
0.86 1.82
8.4.1 Mulliken-Jaffe Electronegativity
2.48NA
Cesium Metal
0.62 2.48
9.1.1 Allen Electronegativity
2.19NA
Cesium Metal
0.659 2.7
9.5 Electropositivity
9.5.1 Pauling Electropositivity
2.00NA
Gold Metal
1.46 3.3
10.2 Ionization Energies
10.2.1 1st Energy Level
812.10 kJ/mol823.90 kJ/mol
Cesium Metal
375.7 26130
11.5.1 2nd Energy Level
NA1,601.60 kJ/mol
Ruthenium Metal
710.2162 28750
11.10.2 3rd Energy Level
NA3,367.30 kJ/mol
Osmium Metal
1600 34230
12.2.3 4th Energy Level
NA4,399.70 kJ/mol
Thorium Metal
2780 37066
12.5.1 5th Energy Level
NA5,847.00 kJ/mol
Dubnium Metal
4305.2 97510
12.7.2 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
12.8.2 7th Energy level
NANA
Bohrium Metal
7226.8 114300
12.10.1 8th Energy Level
NANA
Hassium Metal
8857.4 125300
12.13.2 9th Energy Level
NANA
Yttrium Metal
14110 134700
13.4.1 10th Energy Level
NANA
Strontium Metal
17100 144300
13.4.4 11th Energy Level
NANA
Yttrium Metal
19900 169988
13.7.1 12th Energy Level
NANA
Molybdenum Metal
22219 189368
14.1.2 13th Energy Level
NANA
Molybdenum Metal
26930 76015
14.1.6 14th Energy Level
NANA
Molybdenum Metal
29196 86450
14.2.1 15th Energy Level
NANA
Manganese Metal
41987 97510
14.4.1 16th Energy Level
NANA
Iron Metal
47206 109480
15.1.2 17th Energy Level
NANA
Cobalt Metal
52737 122200
15.2.5 18th Energy Level
NANA
Nickel Metal
58570 134810
15.3.3 19th Energy Level
NANA
Copper Metal
64702 148700
15.4.5 20th Energy Level
NANA
Molybdenum Metal
80400 171200
15.4.6 21st Energy Level
NANA
Molybdenum Metal
87000 179100
15.4.10 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
15.4.12 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
15.4.14 24th Energy Level
NANA
Molybdenum Metal
104400 195200
15.5.2 25th Energy Level
NANA
Molybdenum Metal
121900 121900
16.1.1 26th Energy Level
NANA
Molybdenum Metal
127700 127700
17.1.2 27th Energy Level
NANA
Molybdenum Metal
133800 133800
17.2.1 28th Energy Level
NANA
Molybdenum Metal
139800 139800
17.2.5 29th Energy Level
NANA
Molybdenum Metal
148100 148100
17.3.1 30th Energy Level
NANA
Molybdenum Metal
154500 154500
17.5 Electrochemical Equivalent
3.90 g/amp-hrNA
Beryllium Metal
0.16812 8.3209
17.8 Electron Work Function
NANA
Cesium Metal
2.14 5.65
17.9 Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Radioactivity
18 Atomic
18.1 Atomic Number
84114
Lithium Metal
3 117
18.2 Electron Configuration
[Xe] 4f14 5d10 6s2 6p4
[Rn] 5f14 6d10 7s2 7p2
18.3 Crystal Structure
Monoclinic (MON)
Not Known
18.3.1 Crystal Lattice
18.4 Atom
18.4.1 Number of Protons
84114
Lithium Metal
3 117
18.5.3 Number of Neutrons
125184
Lithium Metal
4 184
18.5.5 Number of Electrons
84114
Lithium Metal
3 117
19.2 Radius of an Atom
19.2.1 Atomic Radius
168.00 pm180.00 pm
Beryllium Metal
112 265
19.3.1 Covalent Radius
140.00 pm171.00 pm
Beryllium Metal
96 260
19.3.3 Van der Waals Radius
197.00 pmNA
Zinc Metal
139 348
19.5 Atomic Weight
209.00 amu289.00 amu
Lithium Metal
6.94 294
19.6 Atomic Volume
22.23 cm3/molNA
Manganese Metal
1.39 71.07
19.8 Adjacent Atomic Numbers
19.8.1 Previous Element
19.8.2 Next Element
19.9 Valence Electron Potential
NANA
Francium Metal
8 392.42
19.10 Lattice Constant
335.90 pmNA
Beryllium Metal
228.58 891.25
19.12 Lattice Angles
π/2, π/2, π/2
Unknown
19.13 Lattice C/A Ratio
NANA
Beryllium Metal
1.567 1.886
20 Mechanical
20.1 Density
20.1.1 Density At Room Temperature
9.20 g/cm314.00 g/cm3
Lithium Metal
0.534 40.7
20.2.2 Density When Liquid (at m.p.)
9.40 g/cm3NA
Lithium Metal
0.512 20
20.3 Tensile Strength
NANA
Indium Metal
2.5 11000
20.4 Viscosity
NANA
Mercury Metal
0.001526 0.001526
20.5 Vapor Pressure
20.5.1 Vapor Pressure at 1000 K
NANA
Cerium Metal
2.47E-11 121
20.5.3 Vapor Pressure at 2000 K
NANA
Tungsten Metal
2.62E-10 774
20.6 Elasticity properties
20.6.1 Shear Modulus
NANA
Potassium Metal
1.3 222
20.6.3 Bulk Modulus
NANA
Cesium Metal
1.6 462
20.6.5 Young's Modulus
NANA
Cesium Metal
1.7 528
20.8 Poisson Ratio
NANA
Beryllium Metal
0.032 0.47
20.9 Other Mechanical Properties
NA
NA
21 Magnetic
21.1 Magnetic Characteristics
21.1.1 Specific Gravity
9.32NA
Lithium Metal
0.53 4500
21.1.3 Magnetic Ordering
Nonmagnetic
Unknown
21.1.4 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
21.1.6 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
21.2 Electrical Properties
21.2.1 Electrical Property
Conductor
Unknown
21.2.2 Resistivity
0.40 nΩ·mNA
Thallium Metal
0.18 961
21.2.4 Electrical Conductivity
0.02 106/cm ΩNA
Plutonium Metal
0.00666 0.63
21.2.6 Electron Affinity
183.30 kJ/molNA
Mercury Metal
0 222.8
22 Thermal
22.1 Specific Heat
0.12 J/(kg K)NA
Americium Metal
0.11 3.6
22.2 Molar Heat Capacity
26.40 J/mol·KNA
Beryllium Metal
16.443 62.7
22.4 Thermal Conductivity
20.00 W/m·KNA
Neptunium Metal
6.3 429
22.5 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
23.2 Thermal Expansion
23.50 µm/(m·K)NA
Tungsten Metal
4.5 97
23.6 Enthalpy
23.6.1 Enthalpy of Vaporization
60.30 kJ/molNA
Zinc Metal
7.32 799.1
23.6.2 Enthalpy of Fusion
13.00 kJ/molNA
Cesium Metal
2.1 35.23
23.6.4 Enthalpy of Atomization
134.00 kJ/molNA
Mercury Metal
61.5 837
23.7 Standard Molar Entropy
NANA
Beryllium Metal
9.5 198.1