1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.5 Block
1.6 Element Family
1.7 CAS Number
74299277440520
7429905
54386242
1.8 Space Group Name
1.9 Space Group Number
2 Facts
2.1 Interesting Facts
- Einsteinium is the transuranic element found in US.
- Only 0.01 mg of Einsteinium was synthesized in 1961.
- Erbium metal is used as alloyed with Vanadium to make it softer.
- Recent studies shows that it is helpful for metabolism.
2.2 Sources
Made by Bombarding Uranium with Neutrons
Mining
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Carl Gustaf Mosander
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.4.2 Abundance In Sun
~-9999 %~0.0000001 %
1E-08
0.1
1.2.1 Abundance In Meteorites
1.3.1 Abundance In Earth's Crust
1.6.1 Abundance In Oceans
1.8.1 Abundance In Humans
2 Uses
2.1 Uses & Benefits
- Currently known uses of Einsteinium metal are limited to research purpose only.
- It has a tendency to get tarnished in the open air, but when alloyed with elements like erbium, vanadium, its hardness levels decreases.
- Its compounds like Erbium oxide is used in safety glasses of welders and metal workers.
2.1.1 Industrial Uses
2.1.2 Medical Uses
2.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys
2.2 Biological Properties
2.2.1 Toxicity
3.1.1 Present in Human Body
3.1.2 In Blood
0.00 Blood/mg dm-3NA
0
1970
3.4.2 In Bone
4 Physical
4.1 Melting Point
860.00 °C1,522.00 °C
27
3410
4.2 Boiling Point
996.00 °C2,510.00 °C
147
5660
4.3 Appearance
4.3.1 Physical State
4.3.2 Color
4.3.3 Luster
4.4 Hardness
4.4.1 Mohs Hardness
4.4.3 Brinell Hardness
5.2.4 Vickers Hardness
5.3 Speed of Sound
6.2 Optical Properties
6.2.1 Refractive Index
6.3.1 Reflectivity
6.4 Allotropes
6.4.1 α Allotropes
Not Available
Not Available
6.4.2 β Allotropes
Not Available
Not Available
6.4.3 γ Allotropes
Not Available
Not Available
7 Chemical
7.1 Chemical Formula
7.2 Isotopes
7.2.1 Known Isotopes
7.5 Electronegativity
7.5.1 Pauling Electronegativity
7.5.3 Sanderson Electronegativity
7.5.5 Allred Rochow Electronegativity
7.6.1 Mulliken-Jaffe Electronegativity
7.7.2 Allen Electronegativity
8.3 Electropositivity
8.3.1 Pauling Electropositivity
8.4 Ionization Energies
8.4.1 1st Energy Level
619.00 kJ/mol589.30 kJ/mol
375.7
26130
8.5.2 2nd Energy Level
1,216.00 kJ/mol1,150.00 kJ/mol
710.2162
28750
8.5.4 3rd Energy Level
2,334.00 kJ/mol2,194.00 kJ/mol
1600
34230
8.5.6 4th Energy Level
3,734.00 kJ/mol4,120.00 kJ/mol
2780
37066
8.5.8 5th Energy Level
8.5.10 6th Energy Level
8.5.11 7th Energy level
8.6.2 8th Energy Level
8.7.2 9th Energy Level
8.7.4 10th Energy Level
8.7.6 11th Energy Level
8.7.8 12th Energy Level
8.7.10 13th Energy Level
8.7.12 14th Energy Level
8.7.14 15th Energy Level
8.7.16 16th Energy Level
8.7.18 17th Energy Level
8.7.20 18th Energy Level
8.7.22 19th Energy Level
8.7.24 20th Energy Level
8.7.25 21st Energy Level
8.7.27 22nd Energy Level
8.7.29 23rd Energy Level
8.7.31 24th Energy Level
8.7.32 25th Energy Level
8.7.34 26th Energy Level
8.7.36 27th Energy Level
8.7.38 28th Energy Level
8.7.39 29th Energy Level
8.7.41 30th Energy Level
8.8 Electrochemical Equivalent
4.74 g/amp-hr2.08 g/amp-hr
0.16812
8.3209
8.9 Electron Work Function
8.10 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Solubility
9 Atomic
9.1 Atomic Number
9.2 Electron Configuration
[Rn] 5f11 7s2
[Xe] 4f12 6s2
9.3 Crystal Structure
Face Centered Cubic (FCC)
Hexagonal Close Packed (HCP)
9.3.1 Crystal Lattice
9.4 Atom
9.4.1 Number of Protons
9.4.4 Number of Neutrons
9.4.6 Number of Electrons
9.5 Radius of an Atom
9.5.1 Atomic Radius
186.00 pm176.00 pm
112
265
9.6.1 Covalent Radius
9.7.1 Van der Waals Radius
10.2 Atomic Weight
252.00 amu167.26 amu
6.94
294
10.3 Atomic Volume
NA18.40 cm3/mol
1.39
71.07
10.7 Adjacent Atomic Numbers
10.7.1 Previous Element
10.7.2 Next Element
10.8 Valence Electron Potential
10.9 Lattice Constant
NA355.88 pm
228.58
891.25
10.10 Lattice Angles
10.11 Lattice C/A Ratio
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
8.84 g/cm39.07 g/cm3
0.534
40.7
11.1.3 Density When Liquid (at m.p.)
11.3 Tensile Strength
11.4 Viscosity
11.6 Vapor Pressure
11.6.1 Vapor Pressure at 1000 K
11.8.1 Vapor Pressure at 2000 K
11.9 Elasticity properties
11.9.1 Shear Modulus
11.10.1 Bulk Modulus
12.1.2 Young's Modulus
12.2 Poisson Ratio
12.4 Other Mechanical Properties
13 Magnetic
13.1 Magnetic Characteristics
13.1.1 Specific Gravity
13.2.1 Magnetic Ordering
Paramagnetic
Paramagnetic
13.2.2 Permeability
13.3.2 Susceptibility
13.4 Electrical Properties
13.4.1 Electrical Property
13.4.2 Resistivity
13.5.2 Electrical Conductivity
NA0.01 106/cm Ω
0.00666
0.63
13.5.4 Electron Affinity
14 Thermal
14.1 Specific Heat
14.3 Molar Heat Capacity
NA28.12 J/mol·K
16.443
62.7
15.2 Thermal Conductivity
15.3 Critical Temperature
15.4 Thermal Expansion
15.6 Enthalpy
15.6.1 Enthalpy of Vaporization
NA261.00 kJ/mol
7.32
799.1
15.6.3 Enthalpy of Fusion
15.6.5 Enthalpy of Atomization
16.2 Standard Molar Entropy
NA73.10 J/mol.K
9.5
198.1