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Atomic Structure of Rhenium and Promethium


Atomic Structure of Promethium and Rhenium


Atomic Properties

Atomic Number
75   
99+
61   
99+

Electron Configuration
[Xe] 4f14 5d5 6s2   
[Xe] 4f5 6s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Double Hexagonal Close Packed (DHCP)   

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

Atom
  
  

Number of Protons
75   
40
61   
99+

Number of Neutrons
111   
26
84   
40

Number of Electrons
75   
40
61   
99+

Radius of an Atom
  
  

Atomic Radius
137.00 pm   
40
183.00 pm   
10

Covalent Radius
151.00 pm   
34
199.00 pm   
12

Van der Waals Radius
200.00 pm   
28
236.00 pm   
16

Atomic Weight
186.21 amu   
36
145.00 amu   
99+

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

Adjacent Atomic Numbers
  
  

Previous Element
Tungsten
  
Neodymium
  

Next Element
Osmium
  
Samarium
  

Valence Electron Potential
180.00 (-eV)   
3
44.10 (-eV)   
39

Lattice Constant
276.10 pm   
99+
Not Available   

Lattice Angles
π/2, π/2, 2 π/3   
Unknown   

Lattice C/A Ratio
1.62   
3
Not Available   

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