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Berkelium
Berkelium

Einsteinium
Einsteinium



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Berkelium
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Einsteinium

Berkelium Einsteinium Comparison

1 Periodic Table
1.1 Symbol
Bk
Es
1.2 Group Number
NANA
Gadolinium Metal
0 17
1.3 Period Number
77
Lithium Metal
2 7
1.7 Block
f block
f block
1.8 Element Family
Actinide
Actinide
1.9 CAS Number
74404067429927
Aluminium Metal
7429905 54386242
1.10 Space Group Name
P63/mmc
Not Available
1.11 Space Group Number
194.00NA
Plutonium Metal
11 229
2 Facts
2.1 Interesting Facts
  • X-ray Diffraction- different compounds of Berkelium metals are identified using it.
    Commercial uses of Berkelium metal are not yet discovered.
  • Einsteinium is the transuranic element found in US.
  • Only 0.01 mg of Einsteinium was synthesized in 1961.
2.2 Sources
Bombarding Americium with Alpha Particles.
Made by Bombarding Uranium with Neutrons
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Lawrence Berkeley National Laboratory
2.3.2 Discovery
In 1949
In 1952
2.4 Abundance
2.4.1 Abundance In Universe
NANA
Thallium Metal
5E-09 0.11
2.5.1 Abundance In Sun
~-9999 %~-9999 %
Beryllium Metal
1E-08 0.1
2.6.3 Abundance In Meteorites
NANA
Gold Metal
1.7E-07 22
3.2.2 Abundance In Earth's Crust
NANA
Radium Metal
9.9E-12 8.1
3.3.2 Abundance In Oceans
NANA
Protactinium Metal
2E-23 1.1
3.3.4 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
4 Uses
4.1 Uses & Benefits
  • This metal is very rare and has no commercial uses.
  • Currently known uses of Einsteinium metal are limited to research purpose only.
4.1.1 Industrial Uses
NA
NA
4.1.2 Medical Uses
NA
NA
4.1.3 Other Uses
NA
Alloys, Nuclear Research, Research Purposes
4.2 Biological Properties
4.2.1 Toxicity
Unknown
Toxic
4.2.3 Present in Human Body
4.2.4 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
Plutonium Metal
0 1970
4.2.7 In Bone
0.00 p.p.m.0.00 p.p.m.
Plutonium Metal
0 170000
5 Physical
5.1 Melting Point
986.00 °C860.00 °C
Francium Metal
27 3410
5.4 Boiling Point
2,627.00 °C996.00 °C
Flerovium Metal
147 5660
5.5 Appearance
5.5.1 Physical State
Solid
Solid
5.5.2 Color
Silver
Silver
5.5.3 Luster
Metallic
NA
5.6 Hardness
5.6.1 Mohs Hardness
NANA
Cesium Metal
0.2 8.5
5.6.3 Brinell Hardness
NANA
Cesium Metal
0.14 3490
5.6.6 Vickers Hardness
NANA
Palladium Metal
121 3430
5.7 Speed of Sound
NANA
Thallium Metal
818 16200
5.8 Optical Properties
5.8.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
5.8.3 Reflectivity
NANA
Molybdenum Metal
58 97
5.9 Allotropes
5.9.1 α Allotropes
Not Available
Not Available
5.9.2 β Allotropes
Not Available
Not Available
5.9.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
Bk
Es
6.2 Isotopes
6.2.1 Known Isotopes
1416
Tennessine Metal
0 38
6.3 Electronegativity
6.3.1 Pauling Electronegativity
1.301.54
Francium Metal
0.7 2.54
6.3.2 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
6.3.5 Allred Rochow Electronegativity
1.201.20
Cesium Metal
0.86 1.82
6.3.7 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
6.3.9 Allen Electronegativity
2.70NA
Cesium Metal
0.659 2.7
6.4 Electropositivity
6.4.1 Pauling Electropositivity
2.702.70
Gold Metal
1.46 3.3
6.5 Ionization Energies
6.5.1 1st Energy Level
601.00 kJ/mol619.00 kJ/mol
Cesium Metal
375.7 26130
6.5.4 2nd Energy Level
1,186.00 kJ/mol1,216.00 kJ/mol
Ruthenium Metal
710.2162 28750
6.5.7 3rd Energy Level
2,152.00 kJ/mol2,334.00 kJ/mol
Osmium Metal
1600 34230
6.5.10 4th Energy Level
3,434.00 kJ/mol3,734.00 kJ/mol
Thorium Metal
2780 37066
6.5.14 5th Energy Level
NANA
Dubnium Metal
4305.2 97510
6.5.17 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
6.5.19 7th Energy level
NANA
Bohrium Metal
7226.8 114300
6.6.1 8th Energy Level
NANA
Hassium Metal
8857.4 125300
6.7.1 9th Energy Level
NANA
Yttrium Metal
14110 134700
7.1.1 10th Energy Level
NANA
Strontium Metal
17100 144300
7.4.2 11th Energy Level
NANA
Yttrium Metal
19900 169988
7.4.3 12th Energy Level
NANA
Molybdenum Metal
22219 189368
7.4.5 13th Energy Level
NANA
Molybdenum Metal
26930 76015
7.4.7 14th Energy Level
NANA
Molybdenum Metal
29196 86450
7.5.2 15th Energy Level
NANA
Manganese Metal
41987 97510
7.5.4 16th Energy Level
NANA
Iron Metal
47206 109480
7.5.6 17th Energy Level
NANA
Cobalt Metal
52737 122200
7.6.1 18th Energy Level
NANA
Nickel Metal
58570 134810
7.6.2 19th Energy Level
NANA
Copper Metal
64702 148700
7.7.1 20th Energy Level
NANA
Molybdenum Metal
80400 171200
7.7.2 21st Energy Level
NANA
Molybdenum Metal
87000 179100
7.9.1 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
7.10.1 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
8.1.2 24th Energy Level
NANA
Molybdenum Metal
104400 195200
8.1.3 25th Energy Level
NANA
Molybdenum Metal
121900 121900
8.1.5 26th Energy Level
NANA
Molybdenum Metal
127700 127700
8.1.6 27th Energy Level
NANA
Molybdenum Metal
133800 133800
8.2.1 28th Energy Level
NANA
Molybdenum Metal
139800 139800
8.3.1 29th Energy Level
NANA
Molybdenum Metal
148100 148100
8.4.2 30th Energy Level
NANA
Molybdenum Metal
154500 154500
8.5 Electrochemical Equivalent
3.07 g/amp-hr4.74 g/amp-hr
Beryllium Metal
0.16812 8.3209
8.7 Electron Work Function
NANA
Cesium Metal
2.14 5.65
8.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Radioactivity
9 Atomic
9.1 Atomic Number
9799
Lithium Metal
3 117
9.3 Electron Configuration
[Rn] 5f9 7s2
[Rn] 5f11 7s2
9.4 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Face Centered Cubic (FCC)
9.4.1 Crystal Lattice
9.5 Atom
9.5.1 Number of Protons
9799
Lithium Metal
3 117
10.1.4 Number of Neutrons
150153
Lithium Metal
4 184
10.2.3 Number of Electrons
9799
Lithium Metal
3 117
10.3 Radius of an Atom
10.3.1 Atomic Radius
170.00 pm186.00 pm
Beryllium Metal
112 265
10.3.3 Covalent Radius
NANA
Beryllium Metal
96 260
10.3.4 Van der Waals Radius
NANA
Zinc Metal
139 348
11.2 Atomic Weight
247.00 amu252.00 amu
Lithium Metal
6.94 294
11.4 Atomic Volume
NANA
Manganese Metal
1.39 71.07
11.6 Adjacent Atomic Numbers
11.6.1 Previous Element
11.6.2 Next Element
11.7 Valence Electron Potential
45.50 (-eV)NA
Francium Metal
8 392.42
11.9 Lattice Constant
341.60 pmNA
Beryllium Metal
228.58 891.25
11.11 Lattice Angles
π/2, π/2, 2 π/3
NA
11.12 Lattice C/A Ratio
NANA
Beryllium Metal
1.567 1.886
12 Mechanical
12.1 Density
12.1.1 Density At Room Temperature
14.78 g/cm38.84 g/cm3
Lithium Metal
0.534 40.7
12.2.2 Density When Liquid (at m.p.)
13.25 g/cm3NA
Lithium Metal
0.512 20
12.3 Tensile Strength
NANA
Indium Metal
2.5 11000
12.4 Viscosity
NANA
Mercury Metal
0.001526 0.001526
12.5 Vapor Pressure
12.5.1 Vapor Pressure at 1000 K
NANA
Cerium Metal
2.47E-11 121
12.6.1 Vapor Pressure at 2000 K
NANA
Tungsten Metal
2.62E-10 774
12.7 Elasticity properties
12.7.1 Shear Modulus
NANA
Potassium Metal
1.3 222
12.7.2 Bulk Modulus
NANA
Cesium Metal
1.6 462
12.7.3 Young's Modulus
NANA
Cesium Metal
1.7 528
12.8 Poisson Ratio
NANA
Beryllium Metal
0.032 0.47
12.9 Other Mechanical Properties
NA
NA
13 Magnetic
13.1 Magnetic Characteristics
13.1.1 Specific Gravity
14.00NA
Lithium Metal
0.53 4500
13.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
13.1.3 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
13.1.4 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
13.2 Electrical Properties
13.2.1 Electrical Property
Conductor
Unknown
13.2.2 Resistivity
NANA
Thallium Metal
0.18 961
13.2.3 Electrical Conductivity
NANA
Plutonium Metal
0.00666 0.63
13.2.4 Electron Affinity
NANA
Mercury Metal
0 222.8
14 Thermal
14.1 Specific Heat
NANA
Americium Metal
0.11 3.6
14.2 Molar Heat Capacity
NANA
Beryllium Metal
16.443 62.7
14.3 Thermal Conductivity
10.00 W/m·KNA
Neptunium Metal
6.3 429
14.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
14.5 Thermal Expansion
NANA
Tungsten Metal
4.5 97
14.6 Enthalpy
14.6.1 Enthalpy of Vaporization
NANA
Zinc Metal
7.32 799.1
14.6.2 Enthalpy of Fusion
NANA
Cesium Metal
2.1 35.23
14.6.3 Enthalpy of Atomization
NANA
Mercury Metal
61.5 837
14.7 Standard Molar Entropy
NANA
Beryllium Metal
9.5 198.1