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Atomic Structure of Erbium and Uranium


Atomic Structure of Uranium and Erbium


Atomic Properties

Atomic Number
68   
99+
92   
26

Electron Configuration
[Xe] 4f12 6s2   
[Rn] 5f3 6d1 7s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Orthorhombic (ORTH)   

Crystal Lattice
HCP-Crystal-Structure-of-Erbium.jpg#100   
ORTH-Crystal-Structure-of-Uranium.jpg#100   

Atom
  
  

Number of Protons
68   
99+
92   
26

Number of Neutrons
99   
33
146   
13

Number of Electrons
68   
99+
92   
26

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
156.00 pm   
29

Covalent Radius
189.00 pm   
19
196.00 pm   
14

Van der Waals Radius
Not Available   
186.00 pm   
33

Atomic Weight
167.26 amu   
99+
238.03 amu   
21

Atomic Volume
18.40 cm3/mol   
25
12.59 cm3/mol   
40

Adjacent Atomic Numbers
  
  

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Holmium
  

Next Element
Thulium
  
Neptunium
  

Valence Electron Potential
49.00 (-eV)   
29
170.00 (-eV)   
4

Lattice Constant
355.88 pm   
39
295.08 pm   
99+

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

Lattice C/A Ratio
1.57   
17
Not Available   

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