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Atomic Structure of Manganese and Promethium


Atomic Structure of Promethium and Manganese


Atomic Properties

Atomic Number
25   
99+
61   
99+

Electron Configuration
[Ar] 3d5 4s2   
[Xe] 4f5 6s2   

Crystal Structure
Body Centered Cubic (BCC)   
Double Hexagonal Close Packed (DHCP)   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
DHCP-Crystal-Structure-of-Promethium.jpg#100   

Atom
  
  

Number of Protons
25   
99+
61   
99+

Number of Neutrons
30   
99+
84   
40

Number of Electrons
25   
99+
61   
99+

Radius of an Atom
  
  

Atomic Radius
127.00 pm   
99+
183.00 pm   
10

Covalent Radius
139.00 pm   
99+
199.00 pm   
12

Van der Waals Radius
200.00 pm   
28
236.00 pm   
16

Atomic Weight
54.94 amu   
99+
145.00 amu   
99+

Atomic Volume
1.39 cm3/mol   
99+
22.39 cm3/mol   
12

Adjacent Atomic Numbers
  
  

Previous Element
Chromium
  
Neodymium
  

Next Element
Iron
  
Samarium
  

Valence Electron Potential
220.00 (-eV)   
2
44.10 (-eV)   
39

Lattice Constant
891.25 pm   
1
Not Available   

Lattice Angles
π/2, π/2, π/2   
Unknown   

Lattice C/A Ratio
Not Available   
Not Available   

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