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Atomic Structure of Technetium and Cerium


Atomic Structure of Cerium and Technetium


Atomic Properties

Atomic Number
43   
99+
58   
99+

Electron Configuration
[Kr] 4d5 5s2   
[Xe] 4f1 5d1 6s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Double Hexagonal Close Packed (DHCP)   

Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100   
DHCP-Crystal-Structure-of-Cerium.jpg#100   

Atom
  
  

Number of Protons
43   
99+
58   
99+

Number of Neutrons
55   
99+
82   
99+

Number of Electrons
43   
99+
58   
99+

Radius of an Atom
  
  

Atomic Radius
136.00 pm   
99+
181.80 pm   
12

Covalent Radius
147.00 pm   
37
204.00 pm   
8

Van der Waals Radius
200.00 pm   
28
235.00 pm   
17

Atomic Weight
98.00 amu   
99+
140.12 amu   
99+

Atomic Volume
8.50 cm3/mol   
99+
20.67 cm3/mol   
17

Adjacent Atomic Numbers
  
  

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Molybdenum
  
Lanthanum
  

Next Element
Ruthenium
  

Valence Electron Potential
180.00 (-eV)   
3
41.78 (-eV)   
99+

Lattice Constant
273.50 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   
5
Not Available   

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