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Atomic Structure of Einsteinium and Fermium


Atomic Structure of Fermium and Einsteinium


Atomic

Atomic Number
99  
19
100  
18

Electron Configuration
[Rn] 5f11 7s2  
[Rn] 5f12 7s2  

Crystal Structure
Face Centered Cubic (FCC)  
Not Known  

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

Atom
  
  

Number of Protons
99  
19
100  
18

Number of Neutrons
153  
10
157  
8

Number of Electrons
99  
19
100  
18

Radius of an Atom
  
  

Atomic Radius
186.00 pm  
11
180.00 pm  
16

Covalent Radius
186.00 pm  
21
180.00 pm  
23

Van der Waals Radius
0.00 pm  
99+
245.00 pm  
13

Atomic Weight
252.00 amu  
16
257.00 amu  
15

Atomic Volume
17.04 cm3/mol  
99+
18.00 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element

Next Element
Fermium
  

Valence Electron Potential
0.00 (-eV)  
99+
0.00 (-eV)  
99+

Lattice Constant
582.00 pm  
8
350.00 pm  
99+

Lattice Angles
-  
-  

Lattice C/A Ratio
1.29  
99+
1.63  
13

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