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Atomic Structure of Thallium and 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
  

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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