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Atomic Structure of Yttrium and Europium

Yttrium
Europium
Atomic Structure of Europium and Yttrium


Atomic Properties
Atomic Number
39   
99+
63   
99+
Electron Configuration
[Kr] 4d1 5s2   
[Xe] 4f7 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   
Crystal Lattice
HCP-Crystal-Structure-of-Yttrium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
39   
99+
63   
99+
Number of Neutrons
50   
99+
89   
38
Number of Electrons
39   
99+
63   
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm   
14
180.00 pm   
14
Covalent Radius
190.00 pm   
18
198.00 pm   
13
Van der Waals Radius
200.00 pm   
28
233.00 pm   
18
Atomic Weight
88.91 amu   
99+
151.96 amu   
99+
Atomic Volume
19.80 cm3/mol   
21
28.90 cm3/mol   
8
Adjacent Atomic Numbers
  
  
Previous Element
Strontium
  
Samarium
  
Next Element
Zirconium
  
Gadolinium
  
Valence Electron Potential
48.00 (-eV)   
30
45.60 (-eV)   
35
Lattice Constant
364.74 pm   
31
458.10 pm   
17
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.57   
16
Not Available   
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