1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
1.6 CAS Number
74405207429927
7429905
54386242
1.7 Space Group Name
1.8 Space Group Number
2 Facts
2.1 Interesting Facts
- Erbium metal is used as alloyed with Vanadium to make it softer.
- Recent studies shows that it is helpful for metabolism.
- Einsteinium is the transuranic element found in US.
- Only 0.01 mg of Einsteinium was synthesized in 1961.
2.2 Sources
Mining
Made by Bombarding Uranium with Neutrons
2.3 History
2.3.1 Who Discovered
Carl Gustaf Mosander
Lawrence Berkeley National Laboratory
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.4.4 Abundance In Sun
~0.0000001 %~-9999 %
1E-08
0.1
2.4.6 Abundance In Meteorites
2.5.1 Abundance In Earth's Crust
2.6.1 Abundance In Oceans
1.3.0 Abundance In Humans
3 Uses
3.1 Uses & Benefits
- 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.
- Currently known uses of Einsteinium metal are limited to research purpose only.
3.1.1 Industrial Uses
3.1.2 Medical Uses
3.1.3 Other Uses
Alloys
Alloys, Nuclear Research, Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
3.2.2 Present in Human Body
3.2.3 In Blood
NA0.00 Blood/mg dm-3
0
1970
4.7.2 In Bone
2 Physical
2.2 Melting Point
1,522.00 °C860.00 °C
27
3410
2.4 Boiling Point
2,510.00 °C996.00 °C
147
5660
3.3 Appearance
3.3.1 Physical State
3.3.2 Color
3.3.3 Luster
3.4 Hardness
3.4.1 Mohs Hardness
4.2.1 Brinell Hardness
4.7.5 Vickers Hardness
4.9 Speed of Sound
4.13 Optical Properties
4.13.1 Refractive Index
5.3.2 Reflectivity
5.4 Allotropes
5.4.1 α Allotropes
Not Available
Not Available
5.4.2 β Allotropes
Not Available
Not Available
5.4.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
6.2 Isotopes
6.2.1 Known Isotopes
6.4 Electronegativity
6.4.1 Pauling Electronegativity
6.4.3 Sanderson Electronegativity
6.6.2 Allred Rochow Electronegativity
6.7.2 Mulliken-Jaffe Electronegativity
6.9.1 Allen Electronegativity
6.12 Electropositivity
6.12.1 Pauling Electropositivity
7.2 Ionization Energies
7.2.1 1st Energy Level
589.30 kJ/mol619.00 kJ/mol
375.7
26130
7.2.4 2nd Energy Level
1,150.00 kJ/mol1,216.00 kJ/mol
710.2162
28750
7.2.6 3rd Energy Level
2,194.00 kJ/mol2,334.00 kJ/mol
1600
34230
7.3.1 4th Energy Level
4,120.00 kJ/mol3,734.00 kJ/mol
2780
37066
7.4.2 5th Energy Level
7.5.3 6th Energy Level
7.5.6 7th Energy level
7.5.9 8th Energy Level
7.6.2 9th Energy Level
7.6.5 10th Energy Level
7.6.8 11th Energy Level
7.6.13 12th Energy Level
7.6.18 13th Energy Level
7.7.2 14th Energy Level
7.8.1 15th Energy Level
8.2.2 16th Energy Level
8.3.1 17th Energy Level
8.4.1 18th Energy Level
8.5.3 19th Energy Level
8.5.5 20th Energy Level
8.5.8 21st Energy Level
8.5.10 22nd Energy Level
8.5.13 23rd Energy Level
8.5.15 24th Energy Level
8.5.17 25th Energy Level
9.1.1 26th Energy Level
9.2.1 27th Energy Level
9.4.1 28th Energy Level
9.5.1 29th Energy Level
10.1.1 30th Energy Level
10.5 Electrochemical Equivalent
2.08 g/amp-hr4.74 g/amp-hr
0.16812
8.3209
10.7 Electron Work Function
10.10 Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Radioactivity
11 Atomic
11.1 Atomic Number
11.2 Electron Configuration
[Xe] 4f12 6s2
[Rn] 5f11 7s2
11.3 Crystal Structure
Hexagonal Close Packed (HCP)
Face Centered Cubic (FCC)
11.3.1 Crystal Lattice
11.4 Atom
11.4.1 Number of Protons
11.5.1 Number of Neutrons
11.7.1 Number of Electrons
11.10 Radius of an Atom
11.10.1 Atomic Radius
176.00 pm186.00 pm
112
265
11.11.1 Covalent Radius
11.11.2 Van der Waals Radius
12.2 Atomic Weight
167.26 amu252.00 amu
6.94
294
12.4 Atomic Volume
18.40 cm3/molNA
1.39
71.07
12.6 Adjacent Atomic Numbers
12.6.1 Previous Element
12.6.2 Next Element
12.7 Valence Electron Potential
12.9 Lattice Constant
355.88 pmNA
228.58
891.25
12.11 Lattice Angles
12.12 Lattice C/A Ratio
13 Mechanical
13.1 Density
13.1.1 Density At Room Temperature
9.07 g/cm38.84 g/cm3
0.534
40.7
13.2.2 Density When Liquid (at m.p.)
13.3 Tensile Strength
13.4 Viscosity
13.6 Vapor Pressure
13.6.1 Vapor Pressure at 1000 K
14.1.2 Vapor Pressure at 2000 K
14.2 Elasticity properties
14.2.1 Shear Modulus
14.3.3 Bulk Modulus
14.3.5 Young's Modulus
14.4 Poisson Ratio
15.2 Other Mechanical Properties
16 Magnetic
16.1 Magnetic Characteristics
16.1.1 Specific Gravity
16.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
16.1.3 Permeability
16.2.1 Susceptibility
16.4 Electrical Properties
16.4.1 Electrical Property
16.4.2 Resistivity
16.6.1 Electrical Conductivity
0.01 106/cm ΩNA
0.00666
0.63
16.7.2 Electron Affinity
17 Thermal
17.1 Specific Heat
17.2 Molar Heat Capacity
28.12 J/mol·KNA
16.443
62.7
17.3 Thermal Conductivity
17.5 Critical Temperature
17.6 Thermal Expansion
17.7 Enthalpy
17.7.1 Enthalpy of Vaporization
261.00 kJ/molNA
7.32
799.1
17.7.2 Enthalpy of Fusion
17.7.3 Enthalpy of Atomization
17.8 Standard Molar Entropy
73.10 J/mol.KNA
9.5
198.1