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Atomic Structure of Lithium and Protactinium

Lithium
Protactinium
Atomic Structure of Protactinium and Lithium


Atomic Properties
Atomic Number
3   
99+
91   
27
Electron Configuration
[He] 2s1   
[Rn] 5f2 6d1 7s2   
Crystal Structure
Body Centered Cubic (BCC)   
Tetragonal (TETR)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
TETR-Crystal-Structure-of-Protactinium.jpg#100   
Atom
  
  
Number of Protons
3   
99+
91   
27
Number of Neutrons
4   
99+
122   
21
Number of Electrons
3   
99+
91   
27
Radius of an Atom
  
  
Atomic Radius
152.00 pm   
31
163.00 pm   
25
Covalent Radius
128.00 pm   
99+
200.00 pm   
11
Van der Waals Radius
182.00 pm   
35
243.00 pm   
11
Atomic Weight
6.94 amu   
99+
231.04 amu   
24
Atomic Volume
13.10 cm3/mol   
39
15.00 cm3/mol   
34
Adjacent Atomic Numbers
  
  
Previous Element
No Previous Element   
Thorium
  
Next Element
Beryllium
  
Uranium
  
Valence Electron Potential
19.00 (-eV)   
99+
92.00 (-eV)   
11
Lattice Constant
351.00 pm   
99+
392.50 pm   
23
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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