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Atomic Structure of Promethium and Lithium

Promethium
Lithium
Atomic Structure of Lithium and Promethium


Atomic Properties
Atomic Number
61   
99+
3   
99+
Electron Configuration
[Xe] 4f5 6s2   
[He] 2s1   
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+
3   
99+
Number of Neutrons
84   
40
4   
99+
Number of Electrons
61   
99+
3   
99+
Radius of an Atom
  
  
Atomic Radius
183.00 pm   
10
152.00 pm   
31
Covalent Radius
199.00 pm   
12
128.00 pm   
99+
Van der Waals Radius
236.00 pm   
16
182.00 pm   
35
Atomic Weight
145.00 amu   
99+
6.94 amu   
99+
Atomic Volume
22.39 cm3/mol   
12
13.10 cm3/mol   
39
Adjacent Atomic Numbers
  
  
Previous Element
Neodymium
  
No Previous Element   
Next Element
Samarium
  
Beryllium
  
Valence Electron Potential
44.10 (-eV)   
39
19.00 (-eV)   
99+
Lattice Constant
Not Available   
351.00 pm   
99+
Lattice Angles
Unknown   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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