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Atomic Structure of Europium and Tantalum

Europium
Tantalum
Atomic Structure of Tantalum and Europium


Atomic Properties
Atomic Number
63   
99+
73   
99+
Electron Configuration
[Xe] 4f7 6s2   
[Xe] 4f14 5d3 6s2   
Crystal Structure
Body Centered Cubic (BCC)   
Body Centered Cubic (BCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
63   
99+
73   
99+
Number of Neutrons
89   
38
108   
28
Number of Electrons
63   
99+
73   
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm   
14
146.00 pm   
35
Covalent Radius
198.00 pm   
13
170.00 pm   
25
Van der Waals Radius
233.00 pm   
18
200.00 pm   
28
Atomic Weight
151.96 amu   
99+
180.95 amu   
38
Atomic Volume
28.90 cm3/mol   
8
10.90 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Samarium
  
Hafnium
  
Next Element
Gadolinium
  
Tungsten
  
Valence Electron Potential
45.60 (-eV)   
35
110.00 (-eV)   
7
Lattice Constant
458.10 pm   
17
330.13 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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