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Atomic Structure of Uranium and Protactinium


Atomic Structure of Protactinium and Uranium


Atomic

Atomic Number
92  
26
91  
27

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

Crystal Structure
Orthorhombic (ORTH)  
Tetragonal (TETR)  

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

Atom
  
  

Number of Protons
92  
26
91  
27

Number of Neutrons
146  
14
122  
22

Number of Electrons
92  
26
91  
27

Radius of an Atom
  
  

Atomic Radius
156.00 pm  
31
163.00 pm  
27

Covalent Radius
196.00 pm  
14
200.00 pm  
11

Van der Waals Radius
186.00 pm  
40
243.00 pm  
15

Atomic Weight
238.03 amu  
21
231.04 amu  
24

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

Adjacent Atomic Numbers
  
  

Previous Element
Thorium
  

Next Element
Neptunium
  
Uranium
  

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

Lattice Constant
295.08 pm  
99+
392.50 pm  
26

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

Lattice C/A Ratio
1.02  
99+
1.58  
36

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