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Atomic Structure of Beryllium and Europium

Beryllium
Europium
Atomic Structure of Europium and Beryllium


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