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Atomic Structure of Cesium and Yttrium

Cesium
Yttrium
Atomic Structure of Yttrium and Cesium


Atomic Properties
Atomic Number
55   
99+
39   
99+
Electron Configuration
[Xe] 6s1   
[Kr] 4d1 5s2   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Yttrium.jpg#100   
Atom
  
  
Number of Protons
55   
99+
39   
99+
Number of Neutrons
78   
99+
50   
99+
Number of Electrons
55   
99+
39   
99+
Radius of an Atom
  
  
Atomic Radius
265.00 pm   
1
180.00 pm   
14
Covalent Radius
244.00 pm   
2
190.00 pm   
18
Van der Waals Radius
343.00 pm   
2
200.00 pm   
28
Atomic Weight
132.91 amu   
99+
88.91 amu   
99+
Atomic Volume
71.07 cm3/mol   
1
19.80 cm3/mol   
21
Adjacent Atomic Numbers
  
  
Previous Element
Tin
  
Strontium
  
Next Element
Barium
  
Zirconium
  
Valence Electron Potential
8.62 (-eV)   
99+
48.00 (-eV)   
30
Lattice Constant
614.10 pm   
5
364.74 pm   
31
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.57   
16
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