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Atomic Structure of Terbium and Actinium


Atomic Structure of Actinium and Terbium


Atomic Properties

Atomic Number
65   
99+
89   
29

Electron Configuration
[Xe] 4f9 6s2   
[Rn] 6d1 7s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   

Crystal Lattice
HCP-Crystal-Structure-of-Terbium.jpg#100   
FCC-Crystal-Structure-of-Actinium.jpg#100   

Atom
  
  

Number of Protons
65   
99+
89   
29

Number of Neutrons
94   
36
138   
16

Number of Electrons
65   
99+
89   
29

Radius of an Atom
  
  

Atomic Radius
177.00 pm   
17
195.00 pm   
7

Covalent Radius
194.00 pm   
16
Not Available   

Van der Waals Radius
221.00 pm   
22
Not Available   

Atomic Weight
158.93 amu   
99+
227.00 amu   
25

Atomic Volume
19.20 cm3/mol   
22
22.54 cm3/mol   
11

Adjacent Atomic Numbers
  
  

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Gadolinium
  
Radium
  

Next Element
Dysprosium
  
Thorium
  

Valence Electron Potential
46.80 (-eV)   
33
38.60 (-eV)   
99+

Lattice Constant
360.10 pm   
36
567.00 pm   
8

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

Lattice C/A Ratio
1.58   
13
Not Available   

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