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Atomic Structure of Cerium and Thallium

Cerium
Thallium
Atomic Structure of Thallium and Cerium


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