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Atomic Structure of Lanthanum and Uranium


Atomic Structure of Uranium and Lanthanum


Atomic

Atomic Number
57  
99+
92  
26

Electron Configuration
[Xe] 5d2 6s2  
[Rn] 5f3 6d1 7s2  

Crystal Structure
Double Hexagonal Close Packed (DHCP)  
Orthorhombic (ORTH)  

Crystal Lattice
DHCP-Crystal-Structure-of-Lanthanum.jpg#100  
ORTH-Crystal-Structure-of-Uranium.jpg#100  

Atom
  
  

Number of Protons
57  
99+
92  
26

Number of Neutrons
82  
99+
146  
14

Number of Electrons
57  
99+
92  
26

Radius of an Atom
  
  

Atomic Radius
187.00 pm  
10
156.00 pm  
31

Covalent Radius
207.00 pm  
6
196.00 pm  
14

Van der Waals Radius
240.00 pm  
17
186.00 pm  
40

Atomic Weight
138.91 amu  
99+
238.03 amu  
21

Atomic Volume
20.73 cm3/mol  
26
12.59 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Barium
  

Next Element
Cerium
  
Neptunium
  

Valence Electron Potential
40.71 (-eV)  
99+
170.00 (-eV)  
4

Lattice Constant
377.20 pm  
31
295.08 pm  
99+

Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, π/2  

Lattice C/A Ratio
1.62  
16
1.02  
99+

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