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Atomic Structure of Rubidium and Lanthanum

Rubidium
Lanthanum
Atomic Structure of Lanthanum and Rubidium


Atomic Properties
Atomic Number
37   
99+
57   
99+
Electron Configuration
[Kr] 5s1   
[Xe] 5d2 6s2   
Crystal Structure
Body Centered Cubic (BCC)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
DHCP-Crystal-Structure-of-Lanthanum.jpg#100   
Atom
  
  
Number of Protons
37   
99+
57   
99+
Number of Neutrons
48   
99+
82   
99+
Number of Electrons
37   
99+
57   
99+
Radius of an Atom
  
  
Atomic Radius
248.00 pm   
2
187.00 pm   
8
Covalent Radius
220.00 pm   
4
207.00 pm   
6
Van der Waals Radius
303.00 pm   
3
240.00 pm   
13
Atomic Weight
85.47 amu   
99+
138.91 amu   
99+
Atomic Volume
55.90 cm3/mol   
2
20.73 cm3/mol   
16
Adjacent Atomic Numbers
  
  
Previous Element
Gallium
  
Barium
  
Next Element
Strontium
  
Cerium
  
Valence Electron Potential
9.47 (-eV)   
99+
40.71 (-eV)   
99+
Lattice Constant
558.50 pm   
10
377.20 pm   
28
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.62   
2
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