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Atomic Structure of Einsteinium and Cerium


Atomic Structure of Cerium and Einsteinium


Atomic

Atomic Number
99  
19
58  
99+

Electron Configuration
[Rn] 5f11 7s2  
[Xe] 4f1 5d1 6s2  

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

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

Atom
  
  

Number of Protons
99  
19
58  
99+

Number of Neutrons
153  
10
82  
99+

Number of Electrons
99  
19
58  
99+

Radius of an Atom
  
  

Atomic Radius
186.00 pm  
11
181.80 pm  
14

Covalent Radius
186.00 pm  
21
204.00 pm  
8

Van der Waals Radius
0.00 pm  
99+
235.00 pm  
21

Atomic Weight
252.00 amu  
16
140.12 amu  
99+

Atomic Volume
17.04 cm3/mol  
99+
20.67 cm3/mol  
27

Adjacent Atomic Numbers
  
  

Previous Element
Lanthanum
  

Next Element
Fermium
  

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

Lattice Constant
582.00 pm  
8
362.00 pm  
38

Lattice Angles
-  
π/2, π/2, 2 π/3  

Lattice C/A Ratio
1.29  
99+
1.59  
31

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