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Atomic Structure of Thallium and Cerium

Thallium
Cerium
Atomic Structure of Cerium and Thallium


Atomic Properties
Atomic Number
81   
35
58   
99+
Electron Configuration
[Xe] 4f14 5d10 6s2 6p1   
[Xe] 4f1 5d1 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
DHCP-Crystal-Structure-of-Cerium.jpg#100   
Atom
  
  
Number of Protons
81   
35
58   
99+
Number of Neutrons
123   
20
82   
99+
Number of Electrons
81   
35
58   
99+
Radius of an Atom
  
  
Atomic Radius
170.00 pm   
22
181.80 pm   
12
Covalent Radius
145.00 pm   
39
204.00 pm   
8
Van der Waals Radius
196.00 pm   
30
235.00 pm   
17
Atomic Weight
204.38 amu   
31
140.12 amu   
99+
Atomic Volume
17.20 cm3/mol   
31
20.67 cm3/mol   
17
Adjacent Atomic Numbers
  
  
Previous Element
Mercury
  
Lanthanum
  
Next Element
Lead
  
Praseodymium
  
Valence Electron Potential
9.60 (-eV)   
99+
41.78 (-eV)   
99+
Lattice Constant
345.66 pm   
99+
362.00 pm   
34
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.60   
6
Not Available   
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