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Atomic Structure of Lithium and Protactinium

Lithium
Protactinium
Atomic Structure of Protactinium and Lithium


Atomic
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  
22
Number of Electrons
3  
99+
91  
27
Radius of an Atom
  
  
Atomic Radius
152.00 pm  
33
163.00 pm  
27
Covalent Radius
128.00 pm  
99+
200.00 pm  
11
Van der Waals Radius
182.00 pm  
99+
243.00 pm  
15
Atomic Weight
6.94 amu  
99+
231.04 amu  
24
Atomic Volume
13.10 cm3/mol  
99+
15.00 cm3/mol  
99+
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  
26
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.62  
16
1.58  
36
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