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Atomic Structure of Rubidium and Erbium

Rubidium
Erbium
Atomic Structure of Erbium and Rubidium


Atomic Properties
Atomic Number
37   
99+
68   
99+
Electron Configuration
[Kr] 5s1   
[Xe] 4f12 6s2   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Erbium.jpg#100   
Atom
  
  
Number of Protons
37   
99+
68   
99+
Number of Neutrons
48   
99+
99   
33
Number of Electrons
37   
99+
68   
99+
Radius of an Atom
  
  
Atomic Radius
248.00 pm   
2
176.00 pm   
18
Covalent Radius
220.00 pm   
4
189.00 pm   
19
Van der Waals Radius
303.00 pm   
3
Not Available   
Atomic Weight
85.47 amu   
99+
167.26 amu   
99+
Atomic Volume
55.90 cm3/mol   
2
18.40 cm3/mol   
25
Adjacent Atomic Numbers
  
  
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Gallium
  
Holmium
  
Next Element
Strontium
  
Thulium
  
Valence Electron Potential
9.47 (-eV)   
99+
49.00 (-eV)   
29
Lattice Constant
558.50 pm   
10
355.88 pm   
39
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.57   
17
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