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Atomic Structure of Tungsten and Promethium

Tungsten
Promethium
Atomic Structure of Promethium and Tungsten


Atomic Properties
Atomic Number
74   
99+
61   
99+
Electron Configuration
[Xe] 4f14 5d4 6s2   
[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
74   
99+
61   
99+
Number of Neutrons
110   
27
84   
40
Number of Electrons
74   
99+
61   
99+
Radius of an Atom
  
  
Atomic Radius
139.00 pm   
39
183.00 pm   
10
Covalent Radius
162.00 pm   
29
199.00 pm   
12
Van der Waals Radius
200.00 pm   
28
236.00 pm   
16
Atomic Weight
183.84 amu   
37
145.00 amu   
99+
Atomic Volume
9.53 cm3/mol   
99+
22.39 cm3/mol   
12
Adjacent Atomic Numbers
  
  
Previous Element
Tantalum
  
Neodymium
  
Next Element
Rhenium
  
Samarium
  
Valence Electron Potential
140.00 (-eV)   
5
44.10 (-eV)   
39
Lattice Constant
316.52 pm   
99+
Not Available   
Lattice Angles
π/2, π/2, π/2   
Unknown   
Lattice C/A Ratio
Not Available   
Not Available   
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