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Atomic Structure of Barium and Thallium


Atomic Structure of Thallium and Barium


Atomic Properties

Atomic Number
56   
99+
81   
35

Electron Configuration
[Xe] 6s2   
[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
56   
99+
81   
35

Number of Neutrons
81   
99+
123   
20

Number of Electrons
56   
99+
81   
35

Radius of an Atom
  
  

Atomic Radius
222.00 pm   
4
170.00 pm   
22

Covalent Radius
215.00 pm   
5
145.00 pm   
39

Van der Waals Radius
268.00 pm   
6
196.00 pm   
30

Atomic Weight
137.33 amu   
99+
204.38 amu   
31

Atomic Volume
39.24 cm3/mol   
5
17.20 cm3/mol   
31

Adjacent Atomic Numbers
  
  

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Lanthanum
  
Lead
  

Valence Electron Potential
21.30 (-eV)   
99+
9.60 (-eV)   
99+

Lattice Constant
502.80 pm   
15
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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