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Atomic Structure of Protactinium and Lithium

Protactinium
Lithium
Atomic Structure of Lithium and Protactinium


Atomic Properties
Atomic Number
91   
27
3   
99+
Electron Configuration
[Rn] 5f2 6d1 7s2   
[He] 2s1   
Crystal Structure
Tetragonal (TETR)   
Body Centered Cubic (BCC)   
Crystal Lattice
TETR-Crystal-Structure-of-Protactinium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
91   
27
3   
99+
Number of Neutrons
122   
21
4   
99+
Number of Electrons
91   
27
3   
99+
Radius of an Atom
  
  
Atomic Radius
163.00 pm   
25
152.00 pm   
31
Covalent Radius
200.00 pm   
11
128.00 pm   
99+
Van der Waals Radius
243.00 pm   
11
182.00 pm   
35
Atomic Weight
231.04 amu   
24
6.94 amu   
99+
Atomic Volume
15.00 cm3/mol   
34
13.10 cm3/mol   
39
Adjacent Atomic Numbers
  
  
Previous Element
Thorium
  
No Previous Element   
Next Element
Uranium
  
Beryllium
  
Valence Electron Potential
92.00 (-eV)   
11
19.00 (-eV)   
99+
Lattice Constant
392.50 pm   
23
351.00 pm   
99+
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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