Home

Transition Metals + -

Actinide Metals + -

Lanthanide Metals + -

Post-Transition Metals + -

Alkaline Earth Metals + -

Compare Metals


Einsteinium vs Moscovium


Moscovium vs Einsteinium


Periodic Table

Symbol
Es   
Mc   

Group Number
Not Available   
15   
3

Period Number
7   
7   

Block
f block   
p block   

Element Family
Actinide   
Probably Post-​Transition   

CAS Number
7429927   
99+
54085642   
4

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.
  
Not Available   

Sources
Made by Bombarding Uranium with Neutrons   
Synthetically Produced   

History
  
  

Who Discovered
Lawrence Berkeley National Laboratory   
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory   

Discovery
In 1952   
In 2003   

Abundance
  
  

Uses

Uses & Benefits
  • Currently known uses of Einsteinium metal are limited to research purpose only.
  
  • Currently known uses of Ununpentium metal are limited to research purpose only.
  

Industrial Uses
NA   
NA   

Medical Uses
NA   
NA   

Other Uses
Alloys, Nuclear Research, Research Purposes   
Research Purposes   

Biological Properties
  
  

Toxicity
Toxic   
Unknown   

Present in Human Body
No   
No   

In Blood
0.00 Blood/mg dm-3   
37
Not Available   

In Bone
0.00 p.p.m.   
36
Not Available   

Physical Properties

Melting Point
860.00 °C   
99+
400.00 °C   
99+

Boiling Point
996.00 °C   
99+
1,100.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Unknown   

Luster
NA   
Unknown Luster   

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   
Mc   

Isotopes
  
  

Known Isotopes
16   
23
5   
32

Electronegativity
  
  

Pauling Electronegativity
1.54   
26
Not Available   

Allred Rochow Electronegativity
1.20   
27
Not Available   

Electropositivity
  
  

Pauling Electropositivity
2.70   
22
Not Available   

Ionization Energies
  
  

1st Energy Level
619.00 kJ/mol   
99+
538.40 kJ/mol   
99+

2nd Energy Level
1,216.00 kJ/mol   
99+
1,756.00 kJ/mol   
24

3rd Energy Level
2,334.00 kJ/mol   
99+
2,653.30 kJ/mol   
40

4th Energy Level
3,734.00 kJ/mol   
99+
4,679.50 kJ/mol   
24

5th Energy Level
Not Available   
5,721.60 kJ/mol   
27

Electrochemical Equivalent
4.74 g/amp-hr   
5
Not Available   

Electron Work Function
Not Available   
Not Available   

Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Chemical Stability, Ionization   

Atomic Properties

Atomic Number
99   
19
115   
3

Electron Configuration
[Rn] 5f11 7s2   
[Rn] 5f14 6d10 7s2 7p3   

Crystal Structure
Face Centered Cubic (FCC)   
Not Known   

Crystal Lattice
FCC-Crystal-Structure-of-Einsteinium.jpg#100   
Unknown-Crystal-Structure-of-Ununpentium.jpg#100   

Atom
  
  

Number of Protons
99   
19
115   
3

Number of Neutrons
153   
9
159   
5

Number of Electrons
99   
19
115   
3

Radius of an Atom
  
  

Atomic Radius
186.00 pm   
9
Not Available   

Atomic Weight
252.00 amu   
16
289.00 amu   
3

Atomic Volume
Not Available   
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Flerovium
  

Next Element
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+
4.51 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   
Unknown   

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   

Periodic Table >>
<< All

Compare Actinide Series

Actinide Metals

Actinide Metals

» More Actinide Metals

Compare Actinide Series

» More Compare Actinide Series