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Atomic Structure of Europium and Beryllium

Europium
Beryllium
Atomic Structure of Beryllium and Europium


Atomic Properties
Atomic Number
63   
99+
4   
99+
Electron Configuration
[Xe] 4f7 6s2   
[He] 2s2   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Beryllium.jpg#100   
Atom
  
  
Number of Protons
63   
99+
4   
99+
Number of Neutrons
89   
38
5   
99+
Number of Electrons
63   
99+
4   
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm   
14
112.00 pm   
99+
Covalent Radius
198.00 pm   
13
96.00 pm   
99+
Van der Waals Radius
233.00 pm   
18
153.00 pm   
99+
Atomic Weight
151.96 amu   
99+
9.01 amu   
99+
Atomic Volume
28.90 cm3/mol   
8
5.00 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Samarium
  
Lithium
  
Next Element
Gadolinium
  
Sodium
  
Valence Electron Potential
45.60 (-eV)   
35
82.00 (-eV)   
15
Lattice Constant
458.10 pm   
17
228.58 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
1.57   
18
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