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Atomic Structure of Ruthenium and Promethium

Ruthenium
Promethium
Atomic Structure of Promethium and Ruthenium


Atomic Properties
Atomic Number
44   
99+
61   
99+
Electron Configuration
[Kr] 4d7 5s1   
[Xe] 4f5 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
rystal-Structure-of-Ruthenium.jpg#100   
DHCP-Crystal-Structure-of-Promethium.jpg#100   
Atom
  
  
Number of Protons
44   
99+
61   
99+
Number of Neutrons
57   
99+
84   
40
Number of Electrons
44   
99+
61   
99+
Radius of an Atom
  
  
Atomic Radius
134.00 pm   
99+
183.00 pm   
10
Covalent Radius
146.00 pm   
38
199.00 pm   
12
Van der Waals Radius
200.00 pm   
28
236.00 pm   
16
Atomic Weight
101.07 amu   
99+
145.00 amu   
99+
Atomic Volume
8.30 cm3/mol   
99+
22.39 cm3/mol   
12
Adjacent Atomic Numbers
  
  
Previous Element
Technetium
  
Neodymium
  
Next Element
Rhodium
  
Samarium
  
Valence Electron Potential
64.00 (-eV)   
22
44.10 (-eV)   
39
Lattice Constant
270.59 pm   
99+
Not Available   
Lattice Angles
π/2, π/2, 2 π/3   
Unknown   
Lattice C/A Ratio
1.58   
11
Not Available   
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