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Atomic Structure of Radium and Thallium

Radium
Thallium
Atomic Structure of Thallium and Radium


Atomic Properties
Atomic Number
88   
30
81   
35
Electron Configuration
[Rn] 7s2   
[Xe] 4f14 5d10 6s2 6p1   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
88   
30
81   
35
Number of Neutrons
138   
16
123   
20
Number of Electrons
88   
30
81   
35
Radius of an Atom
  
  
Atomic Radius
Not Available   
170.00 pm   
22
Covalent Radius
221.00 pm   
3
145.00 pm   
39
Van der Waals Radius
283.00 pm   
4
196.00 pm   
30
Atomic Weight
226.00 amu   
26
204.38 amu   
31
Atomic Volume
45.20 cm3/mol   
4
17.20 cm3/mol   
31
Adjacent Atomic Numbers
  
  
Previous Element
Francium
  
Mercury
  
Next Element
Actinium
  
Lead
  
Valence Electron Potential
20.10 (-eV)   
99+
9.60 (-eV)   
99+
Lattice Constant
514.80 pm   
13
345.66 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.60   
6
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