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Atomic Structure of Promethium and Ruthenium

Promethium
Ruthenium
Atomic Structure of Ruthenium and Promethium


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