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Atomic Structure of Actinium and Osmium


Atomic Structure of Osmium and Actinium


Atomic Properties

Atomic Number
89   
29
76   
40

Electron Configuration
[Rn] 6d1 7s2   
[Xe] 4f14 5d6 6s2   

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

Crystal Lattice
FCC-Crystal-Structure-of-Actinium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
89   
29
76   
39

Number of Neutrons
138   
16
114   
25

Number of Electrons
89   
29
76   
39

Radius of an Atom
  
  

Atomic Radius
195.00 pm   
7
133.80 pm   
99+

Van der Waals Radius
Not Available   
216.00 pm   
24

Atomic Weight
227.00 amu   
25
190.23 amu   
35

Atomic Volume
22.54 cm3/mol   
11
8.49 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

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Radium
  
Rhenium
  

Next Element
Thorium
  
Iridium
  

Valence Electron Potential
38.60 (-eV)   
99+
91.40 (-eV)   
12

Lattice Constant
567.00 pm   
8
273.44 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.58   
14

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