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Atomic Structure of Thallium and Europium

Thallium
Europium
Atomic Structure of Europium and Thallium


Atomic Properties
Atomic Number
81   
35
63   
99+
Electron Configuration
[Xe] 4f14 5d10 6s2 6p1   
[Xe] 4f7 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
81   
35
63   
99+
Number of Neutrons
123   
20
89   
38
Number of Electrons
81   
35
63   
99+
Radius of an Atom
  
  
Atomic Radius
170.00 pm   
22
180.00 pm   
14
Covalent Radius
145.00 pm   
39
198.00 pm   
13
Van der Waals Radius
196.00 pm   
30
233.00 pm   
18
Atomic Weight
204.38 amu   
31
151.96 amu   
99+
Atomic Volume
17.20 cm3/mol   
31
28.90 cm3/mol   
8
Adjacent Atomic Numbers
  
  
Previous Element
Mercury
  
Samarium
  
Next Element
Lead
  
Gadolinium
  
Valence Electron Potential
9.60 (-eV)   
99+
45.60 (-eV)   
35
Lattice Constant
345.66 pm   
99+
458.10 pm   
17
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.60   
6
Not Available   
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