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Atomic Structure of Meitnerium and Thulium

Meitnerium
Thulium
Atomic Structure of Thulium and Meitnerium


Atomic
Atomic Number
109  
9
69  
99+
Electron Configuration
[Rn] 5f14 6d7 7s2  
[Xe] 4f13 6s2  
Crystal Structure
Face Centered Cubic (FCC)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
FCC-Crystal-Structure-of-Meitnerium.jpg#100  
HCP-Crystal-Structure-of-Thulium.jpg#100  
Atom
  
  
Number of Protons
109  
9
69  
99+
Number of Neutrons
157  
8
100  
33
Number of Electrons
109  
9
69  
99+
Radius of an Atom
  
  
Atomic Radius
122.00 pm  
99+
176.00 pm  
20
Covalent Radius
129.00 pm  
99+
160.00 pm  
32
Van der Waals Radius
260.00 pm  
9
227.00 pm  
26
Atomic Weight
278.00 amu  
7
168.93 amu  
99+
Atomic Volume
20.20 cm3/mol  
30
18.10 cm3/mol  
40
Adjacent Atomic Numbers
  
  
Previous Element
Hassium
  
Erbium
  
Next Element
Darmstadtium
  
Ytterbium
  
Valence Electron Potential
31.20 (-eV)  
99+
49.70 (-eV)  
29
Lattice Constant
0.00 pm  
99+
353.75 pm  
99+
Lattice Angles
-  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.59  
27
1.57  
40
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