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Atomic Structure of Mendelevium and Thulium


Atomic Structure of Thulium and Mendelevium


Atomic

Atomic Number
101  
17
69  
99+

Electron Configuration
[Rn] 5f13 7s2  
[Xe] 4f13 6s2  

Crystal Structure
Not Known  
Hexagonal Close Packed (HCP)  

Crystal Lattice
Unknown-Crystal-Structure-of-Mendelevium.jpg#100  
HCP-Crystal-Structure-of-Thulium.jpg#100  

Atom
  
  

Number of Protons
101  
17
69  
99+

Number of Neutrons
157  
8
100  
33

Number of Electrons
101  
17
69  
99+

Radius of an Atom
  
  

Atomic Radius
175.00 pm  
21
176.00 pm  
20

Covalent Radius
175.00 pm  
25
160.00 pm  
32

Van der Waals Radius
246.00 pm  
12
227.00 pm  
26

Atomic Weight
258.00 amu  
14
168.93 amu  
99+

Atomic Volume
19.90 cm3/mol  
32
18.10 cm3/mol  
40

Adjacent Atomic Numbers
  
  

Previous Element
Fermium
  
Erbium
  

Next Element
Nobelium
  
Ytterbium
  

Valence Electron Potential
63.70 (-eV)  
23
49.70 (-eV)  
29

Lattice Constant
-  
353.75 pm  
99+

Lattice Angles
-  
π/2, π/2, 2 π/3  

Lattice C/A Ratio
1.58  
36
1.57  
40

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