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Atomic Structure of Promethium and Manganese

Promethium
Manganese
Atomic Structure of Manganese and Promethium


Atomic Properties
Atomic Number
61   
99+
25   
99+
Electron Configuration
[Xe] 4f5 6s2   
[Ar] 3d5 4s2   
Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Body Centered Cubic (BCC)   
Crystal Lattice
DHCP-Crystal-Structure-of-Promethium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
61   
99+
25   
99+
Number of Neutrons
84   
40
30   
99+
Number of Electrons
61   
99+
25   
99+
Radius of an Atom
  
  
Atomic Radius
183.00 pm   
10
127.00 pm   
99+
Covalent Radius
199.00 pm   
12
139.00 pm   
99+
Van der Waals Radius
236.00 pm   
16
200.00 pm   
28
Atomic Weight
145.00 amu   
99+
54.94 amu   
99+
Atomic Volume
22.39 cm3/mol   
12
1.39 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Neodymium
  
Chromium
  
Next Element
Samarium
  
Iron
  
Valence Electron Potential
44.10 (-eV)   
39
220.00 (-eV)   
2
Lattice Constant
Not Available   
891.25 pm   
1
Lattice Angles
Unknown   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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