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Atomic Structure of Promethium and Dysprosium

Promethium
Dysprosium
Atomic Structure of Dysprosium and Promethium


Atomic Properties
Atomic Number
61   
99+
66   
99+
Electron Configuration
[Xe] 4f5 6s2   
[Xe] 4f9 6s2   
Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
DHCP-Crystal-Structure-of-Promethium.jpg#100   
HCP-Crystal-Structure-of-Dysprosium.jpg#100   
Atom
  
  
Number of Protons
61   
99+
66   
99+
Number of Neutrons
84   
40
96   
35
Number of Electrons
61   
99+
66   
99+
Radius of an Atom
  
  
Atomic Radius
183.00 pm   
10
178.00 pm   
16
Covalent Radius
199.00 pm   
12
192.00 pm   
17
Van der Waals Radius
236.00 pm   
16
229.00 pm   
20
Atomic Weight
145.00 amu   
99+
162.50 amu   
99+
Atomic Volume
22.39 cm3/mol   
12
19.00 cm3/mol   
23
Adjacent Atomic Numbers
  
  
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Neodymium
  
Terbium
  
Next Element
Samarium
  
Holmium
  
Valence Electron Potential
44.10 (-eV)   
39
47.40 (-eV)   
32
Lattice Constant
Not Available   
359.30 pm   
37
Lattice Angles
Unknown   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.57   
15
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