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Atomic Structure of Einsteinium and Americium


Atomic Structure of Americium and Einsteinium


Atomic Properties

Atomic Number
99   
19
95   
23

Electron Configuration
[Rn] 5f11 7s2   
[Rn] 5f7 7s2   

Crystal Structure
Face Centered Cubic (FCC)   
Double Hexagonal Close Packed (DHCP)   

Crystal Lattice
FCC-Crystal-Structure-of-Einsteinium.jpg#100   
DHCP-Crystal-Structure-of-Americium.jpg#100   

Atom
  
  

Number of Protons
99   
19
95   
23

Number of Neutrons
153   
9
148   
12

Number of Electrons
99   
19
95   
23

Radius of an Atom
  
  

Atomic Radius
186.00 pm   
9
173.00 pm   
21

Covalent Radius
Not Available   
180.00 pm   
21

Van der Waals Radius
Not Available   
244.00 pm   
10

Atomic Weight
252.00 amu   
16
243.00 amu   
20

Atomic Volume
Not Available   
17.86 cm3/mol   
29

Adjacent Atomic Numbers
  
  

Previous Element
Plutonium
  

Next Element
Fermium
  
Curium
  

Valence Electron Potential
Not Available   
44.00 (-eV)   
40

Lattice Constant
Not Available   
346.81 pm   
99+

Lattice Angles
NA   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
Not Available   

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