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Einsteinium
Einsteinium

Osmium
Osmium



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Einsteinium
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Osmium

Einsteinium Osmium Comparison

1 Periodic Table
1.1 Symbol
Es
Os
1.2 Group Number
NA8
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
74299277440042
Aluminium Metal
7429905 54386242
1.7 Space Group Name
Not Available
P63/mmc
1.8 Space Group Number
NA194.00
Plutonium Metal
11 229
2 Facts
2.1 Interesting Facts
  • Einsteinium is the transuranic element found in US.
  • Only 0.01 mg of Einsteinium was synthesized in 1961.
  • Osmium metal does not oxidize in air unless it is heated.
  • But if it heated den it forms Osmium Tetroxide, which is highly toxic.
2.2 Sources
Made by Bombarding Uranium with Neutrons
Found As a By-product, Found in Minerals, Mining
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Smithson Tennant
2.3.2 Discovery
In 1952
In 1803
2.4 Abundance
2.4.1 Abundance In Universe
NA3 * 10-7 %
Thallium Metal
5E-09 0.11
2.4.2 Abundance In Sun
~-9999 %~0.0000002 %
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
NANA
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
  • Currently known uses of Einsteinium metal are limited to research purpose only.
  • 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.
3.1.1 Industrial Uses
NA
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys
3.2 Biological Properties
3.2.1 Toxicity
Toxic
Highly Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-3NA
Plutonium Metal
0 1970
3.2.4 In Bone
0.00 p.p.m.NA
Plutonium Metal
0 170000
4 Physical
4.1 Melting Point
860.00 °C3,045.00 °C
Francium Metal
27 3410
4.2 Boiling Point
996.00 °C5,027.00 °C
Flerovium Metal
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silver
Silvery Bluish-Gray
4.3.3 Luster
NA
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
NA7.00
Cesium Metal
0.2 8.5
4.4.2 Brinell Hardness
NA3,490.00 MPa
Cesium Metal
0.14 3490
4.4.3 Vickers Hardness
NANA
Palladium Metal
121 3430
4.5 Speed of Sound
NA4,940.00 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
Es
Os
5.2 Isotopes
5.2.1 Known Isotopes
1635
Tennessine Metal
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
1.542.20
Francium Metal
0.7 2.54
5.3.2 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.201.52
Cesium Metal
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
5.3.5 Allen Electronegativity
NA1.65
Cesium Metal
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
2.701.80
Gold Metal
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
619.00 kJ/mol840.00 kJ/mol
Cesium Metal
375.7 26130
5.5.2 2nd Energy Level
1,216.00 kJ/mol1,309.80 kJ/mol
Ruthenium Metal
710.2162 28750
5.5.3 3rd Energy Level
2,334.00 kJ/mol1,600.00 kJ/mol
Tin
1600 34230
5.5.4 4th Energy Level
3,734.00 kJ/molNA
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
4.74 g/amp-hr1.77 g/amp-hr
Beryllium Metal
0.16812 8.3209
5.7 Electron Work Function
NA4.83 eV
Cesium Metal
2.14 5.65
5.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Ionization, Solubility
6 Atomic
6.1 Atomic Number
9976
Lithium Metal
3 117
6.2 Electron Configuration
[Rn] 5f11 7s2
[Xe] 4f14 5d6 6s2
6.3 Crystal Structure
Face Centered Cubic (FCC)
Hexagonal Close Packed (HCP)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
9976
Lithium Metal
3 117
6.4.2 Number of Neutrons
153114
Lithium Metal
4 184
6.4.3 Number of Electrons
9976
Lithium Metal
3 117
6.5 Radius of an Atom
6.5.1 Atomic Radius
186.00 pm133.80 pm
Beryllium Metal
112 265
6.5.2 Covalent Radius
NANA
Beryllium Metal
96 260
6.5.3 Van der Waals Radius
NA216.00 pm
Zinc Metal
139 348
6.6 Atomic Weight
252.00 amu190.23 amu
Lithium Metal
6.94 294
6.7 Atomic Volume
NA8.49 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
NA91.40 (-eV)
Francium Metal
8 392.42
6.10 Lattice Constant
NA273.44 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
8.84 g/cm322.59 g/cm3
Lithium Metal
0.534 40.7
7.1.2 Density When Liquid (at m.p.)
NA20.00 g/cm3
Lithium Metal
0.512 20
7.2 Tensile Strength
NA1,000.00 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
NANA
Cerium Metal
2.47E-11 121
7.4.2 Vapor Pressure at 2000 K
NA0.00 (Pa)
Tungsten Metal
2.62E-10 774
7.5 Elasticity properties
7.5.1 Shear Modulus
NA222.00 GPa
Potassium Metal
1.3 222
7.5.2 Bulk Modulus
NA462.00 GPa
Cesium Metal
1.6 462
7.5.3 Young's Modulus
NANA
Cesium Metal
1.7 528
7.6 Poisson Ratio
NA0.25
Beryllium Metal
0.032 0.47
7.7 Other Mechanical Properties
NA
Ductile
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
NA22.57
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
Unknown
Conductor
8.2.2 Resistivity
NA81.20 nΩ·m
Thallium Metal
0.18 961
8.2.3 Electrical Conductivity
NA0.11 106/cm Ω
Plutonium Metal
0.00666 0.63
8.2.4 Electron Affinity
NA106.10 kJ/mol
Mercury Metal
0 222.8
9 Thermal
9.1 Specific Heat
NA0.13 J/(kg K)
Americium Metal
0.11 3.6
9.2 Molar Heat Capacity
NA24.70 J/mol·K
Beryllium Metal
16.443 62.7
9.3 Thermal Conductivity
NA87.60 W/m·K
Neptunium Metal
6.3 429
9.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
9.5 Thermal Expansion
NA5.10 µm/(m·K)
Tungsten Metal
4.5 97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
NA627.60 kJ/mol
Zinc Metal
7.32 799.1
9.6.2 Enthalpy of Fusion
NA29.30 kJ/mol
Cesium Metal
2.1 35.23
9.6.3 Enthalpy of Atomization
NA669.00 kJ/mol
Mercury Metal
61.5 837
9.7 Standard Molar Entropy
NA32.60 J/mol.K
Beryllium Metal
9.5 198.1