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Atomic Structure of Protactinium and Uranium


Atomic Structure of Uranium and Protactinium


Atomic

Atomic Number
91  
27
92  
26

Electron Configuration
[Rn] 5f2 6d1 7s2  
[Rn] 5f3 6d1 7s2  

Crystal Structure
Tetragonal (TETR)  
Orthorhombic (ORTH)  

Crystal Lattice
TETR-Crystal-Structure-of-Protactinium.jpg#100  
ORTH-Crystal-Structure-of-Uranium.jpg#100  

Atom
  
  

Number of Protons
91  
27
92  
26

Number of Neutrons
122  
22
146  
14

Number of Electrons
91  
27
92  
26

Radius of an Atom
  
  

Atomic Radius
163.00 pm  
27
156.00 pm  
31

Covalent Radius
200.00 pm  
11
196.00 pm  
14

Van der Waals Radius
243.00 pm  
15
186.00 pm  
40

Atomic Weight
231.04 amu  
24
238.03 amu  
21

Atomic Volume
15.00 cm3/mol  
99+
12.59 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Thorium
  

Next Element
Uranium
  
Neptunium
  

Valence Electron Potential
92.00 (-eV)  
11
170.00 (-eV)  
4

Lattice Constant
392.50 pm  
26
295.08 pm  
99+

Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  

Lattice C/A Ratio
1.58  
36
1.02  
99+

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