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Atomic Structure of Radium and Thulium


Atomic Structure of Thulium and Radium


Atomic Properties

Atomic Number
88   
30
69   
99+

Electron Configuration
[Rn] 7s2   
[Xe] 4f13 6s2   

Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Thulium.jpg#100   

Atom
  
  

Number of Protons
88   
30
69   
99+

Number of Neutrons
138   
16
100   
32

Number of Electrons
88   
30
69   
99+

Radius of an Atom
  
  

Atomic Radius
Not Available   
176.00 pm   
18

Covalent Radius
221.00 pm   
3
160.00 pm   
30

Van der Waals Radius
283.00 pm   
4
Not Available   

Atomic Weight
226.00 amu   
26
168.93 amu   
99+

Atomic Volume
45.20 cm3/mol   
4
18.10 cm3/mol   
28

Adjacent Atomic Numbers
  
  

Previous Element
Francium
  
Erbium
  

Next Element
Actinium
  
Ytterbium
  

Valence Electron Potential
20.10 (-eV)   
99+
49.70 (-eV)   
28

Lattice Constant
514.80 pm   
13
353.75 pm   
40

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

Lattice C/A Ratio
Not Available   
1.57   
17

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