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Atomic Structure of Roentgenium and Promethium

Roentgenium
Promethium
Atomic Structure of Promethium and Roentgenium


Atomic Properties
Atomic Number
111   
7
61   
99+
Electron Configuration
[Rn] 5f14 6d9 7s2   
[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
111   
7
61   
99+
Number of Neutrons
161   
3
84   
40
Number of Electrons
111   
7
61   
99+
Radius of an Atom
  
  
Atomic Radius
Not Available   
183.00 pm   
10
Covalent Radius
Not Available   
199.00 pm   
12
Van der Waals Radius
Not Available   
236.00 pm   
16
Atomic Weight
281.00 amu   
6
145.00 amu   
99+
Atomic Volume
Not Available   
22.39 cm3/mol   
12
Adjacent Atomic Numbers
  
  
Previous Element
Darmstadtium
  
Neodymium
  
Next Element
Copernicium
  
Samarium
  
Valence Electron Potential
Not Available   
44.10 (-eV)   
39
Lattice Constant
Not Available   
Not Available   
Lattice Angles
NA   
Unknown   
Lattice C/A Ratio
Not Available   
Not Available   
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