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Atomic Structure of Terbium and Fermium


Atomic Structure of Fermium and Terbium


Atomic Properties

Atomic Number
65   
99+
100   
18

Electron Configuration
[Xe] 4f9 6s2   
[Rn] 5f12 7s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Not Known   

Crystal Lattice
HCP-Crystal-Structure-of-Terbium.jpg#100   
Unknown-Crystal-Structure-of-Fermium.jpg#100   

Atom
  
  

Number of Protons
65   
99+
100   
18

Number of Neutrons
94   
36
157   
7

Number of Electrons
65   
99+
100   
18

Radius of an Atom
  
  

Atomic Radius
177.00 pm   
17
Not Available   

Covalent Radius
194.00 pm   
16
Not Available   

Van der Waals Radius
221.00 pm   
22
245.00 pm   
9

Atomic Weight
158.93 amu   
99+
257.00 amu   
15

Atomic Volume
19.20 cm3/mol   
22
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Gadolinium
  

Next Element
Dysprosium
  

Valence Electron Potential
46.80 (-eV)   
33
Not Available   

Lattice Constant
360.10 pm   
36
Not Available   

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

Lattice C/A Ratio
1.58   
13
Not Available   

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