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Einsteinium vs Einsteinium

Einsteinium
Einsteinium
Einsteinium vs Einsteinium


Periodic Table
Symbol
Es   
Es   
Group Number
Not Available   
Not Available   
Period Number
7   
7   
Block
f block   
f block   
Element Family
Actinide   
Actinide   
CAS Number
7429927   
99+
7429927   
99+
Space Group Name
Not Available   
Not Available   
Space Group Number
Not Available   
Not Available   
Facts
Interesting Facts
  • Einsteinium is the transuranic element found in US.
  • Only 0.01 mg of Einsteinium was synthesized in 1961.
  
  • Einsteinium is the transuranic element found in US.
  • Only 0.01 mg of Einsteinium was synthesized in 1961.
  
Sources
Made by Bombarding Uranium with Neutrons   
Made by Bombarding Uranium with Neutrons   
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory   
Lawrence Berkeley National Laboratory   
Discovery
In 1952   
In 1952   
Abundance
  
  
Uses
Uses & Benefits
  • Currently known uses of Einsteinium metal are limited to research purpose only.
  
  • Currently known uses of Einsteinium metal are limited to research purpose only.
  
Industrial Uses
NA   
NA   
Medical Uses
NA   
NA   
Other Uses
Alloys, Nuclear Research, Research Purposes   
Alloys, Nuclear Research, Research Purposes   
Biological Properties
  
  
Toxicity
Toxic   
Toxic   
Present in Human Body
No   
No   
In Blood
0.00 Blood/mg dm-3   
37
0.00 Blood/mg dm-3   
37
In Bone
0.00 p.p.m.   
36
0.00 p.p.m.   
36
Physical Properties
Melting Point
860.00 °C   
99+
860.00 °C   
99+
Boiling Point
996.00 °C   
99+
996.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silver   
Silver   
Luster
NA   
NA   
Hardness
  
  
Speed of Sound
Not Available   
Not Available   
Optical Properties
  
  
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
Es   
Es   
Isotopes
  
  
Known Isotopes
16   
23
16   
23
Electronegativity
  
  
Pauling Electronegativity
1.54   
26
1.54   
26
Allred Rochow Electronegativity
1.20   
27
1.20   
27
Electropositivity
  
  
Pauling Electropositivity
2.70   
22
2.70   
22
Ionization Energies
  
  
1st Energy Level
619.00 kJ/mol   
99+
619.00 kJ/mol   
99+
2nd Energy Level
1,216.00 kJ/mol   
99+
1,216.00 kJ/mol   
99+
3rd Energy Level
2,334.00 kJ/mol   
99+
2,334.00 kJ/mol   
99+
4th Energy Level
3,734.00 kJ/mol   
99+
3,734.00 kJ/mol   
99+
Electrochemical Equivalent
4.74 g/amp-hr   
5
4.74 g/amp-hr   
5
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes, Radioactivity   
Atomic Properties
Atomic Number
99   
19
99   
19
Electron Configuration
[Rn] 5f11 7s2   
[Rn] 5f11 7s2   
Crystal Structure
Face Centered Cubic (FCC)   
Face Centered Cubic (FCC)   
Crystal Lattice
FCC-Crystal-Structure-of-Einsteinium.jpg#100   
FCC-Crystal-Structure-of-Einsteinium.jpg#100   
Atom
  
  
Number of Protons
99   
19
99   
19
Number of Neutrons
153   
9
153   
9
Number of Electrons
99   
19
99   
19
Radius of an Atom
  
  
Atomic Radius
186.00 pm   
9
186.00 pm   
9
Atomic Weight
252.00 amu   
16
252.00 amu   
16
Atomic Volume
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Previous Element
Californium
  
Californium
  
Next Element
Fermium
  
Fermium
  
Valence Electron Potential
Not Available   
Not Available   
Lattice Constant
Not Available   
Not Available   
Lattice Angles
NA   
NA   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
8.84 g/cm3   
99+
8.84 g/cm3   
99+
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Elasticity properties
  
  
Poisson Ratio
Not Available   
Not Available   
Other Mechanical Properties
NA   
NA   
Magnetic Properties
Magnetic Characteristics
  
  
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Thermal Properties
Specific Heat
Not Available   
Not Available   
Molar Heat Capacity
Not Available   
Not Available   
Thermal Conductivity
Not Available   
Not Available   
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
Not Available   
Not Available   
Enthalpy
  
  
Standard Molar Entropy
Not Available   
Not Available   
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