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Atomic Structure of Francium and Einsteinium


Atomic Structure of Einsteinium and Francium


Atomic

Atomic Number
87  
31
99  
19

Electron Configuration
[Rn] 7s1  
[Rn] 5f11 7s2  

Crystal Structure
Body Centered Cubic (BCC)  
Face Centered Cubic (FCC)  

Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
FCC-Crystal-Structure-of-Einsteinium.jpg#100  

Atom
  
  

Number of Protons
87  
31
99  
19

Number of Neutrons
136  
18
153  
10

Number of Electrons
87  
31
99  
19

Radius of an Atom
  
  

Atomic Radius
348.00 pm  
1
186.00 pm  
11

Covalent Radius
260.00 pm  
1
186.00 pm  
21

Van der Waals Radius
348.00 pm  
1
0.00 pm  
99+

Atomic Weight
223.00 amu  
27
252.00 amu  
16

Atomic Volume
71.00 cm3/mol  
2
17.04 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Polonium
  

Next Element
Radium
  
Fermium
  

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

Lattice Constant
440.00 pm  
21
582.00 pm  
8

Lattice Angles
-  
-  

Lattice C/A Ratio
1.56  
99+
1.29  
99+

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