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Atomic Structure of Lithium and Lanthanum

Lithium
Lanthanum
Atomic Structure of Lanthanum and Lithium


Atomic Properties
Atomic Number
3   
99+
57   
99+
Electron Configuration
[He] 2s1   
[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
3   
99+
57   
99+
Number of Neutrons
4   
99+
82   
99+
Number of Electrons
3   
99+
57   
99+
Radius of an Atom
  
  
Atomic Radius
152.00 pm   
31
187.00 pm   
8
Covalent Radius
128.00 pm   
99+
207.00 pm   
6
Van der Waals Radius
182.00 pm   
35
240.00 pm   
13
Atomic Weight
6.94 amu   
99+
138.91 amu   
99+
Atomic Volume
13.10 cm3/mol   
39
20.73 cm3/mol   
16
Adjacent Atomic Numbers
  
  
Previous Element
No Previous Element   
Barium
  
Next Element
Beryllium
  
Cerium
  
Valence Electron Potential
19.00 (-eV)   
99+
40.71 (-eV)   
99+
Lattice Constant
351.00 pm   
99+
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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