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Atomic Structure of Promethium and Potassium

Promethium
Potassium
Atomic Structure of Potassium and Promethium


Atomic Properties
Atomic Number
61   
99+
19   
99+
Electron Configuration
[Xe] 4f5 6s2   
[Ar] 4s1   
Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Body Centered Cubic (BCC)   
Crystal Lattice
DHCP-Crystal-Structure-of-Promethium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
61   
99+
19   
99+
Number of Neutrons
84   
40
20   
99+
Number of Electrons
61   
99+
19   
99+
Radius of an Atom
  
  
Atomic Radius
183.00 pm   
10
227.00 pm   
3
Covalent Radius
199.00 pm   
12
203.00 pm   
9
Van der Waals Radius
236.00 pm   
16
275.00 pm   
5
Atomic Weight
145.00 amu   
99+
39.10 amu   
99+
Atomic Volume
22.39 cm3/mol   
12
45.46 cm3/mol   
3
Adjacent Atomic Numbers
  
  
Previous Element
Neodymium
  
Aluminium
  
Next Element
Samarium
  
Calcium
  
Valence Electron Potential
44.10 (-eV)   
39
10.40 (-eV)   
99+
Lattice Constant
Not Available   
532.80 pm   
12
Lattice Angles
Unknown   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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