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Atomic Structure of Radium and Iridium


Atomic Structure of Iridium and Radium


Atomic Properties

Atomic Number
88   
30
77   
39

Electron Configuration
[Rn] 7s2   
[Xe] 4f14 5d7 6s2   

Crystal Structure
Body Centered Cubic (BCC)   
Face Centered Cubic (FCC)   

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

Atom
  
  

Number of Protons
88   
30
74   
99+

Number of Neutrons
138   
16
110   
27

Number of Electrons
88   
30
74   
99+

Radius of an Atom
  
  

Atomic Radius
Not Available   
136.00 pm   
99+

Covalent Radius
221.00 pm   
3
141.00 pm   
99+

Van der Waals Radius
283.00 pm   
4
202.00 pm   
27

Atomic Weight
226.00 amu   
26
192.22 amu   
34

Atomic Volume
45.20 cm3/mol   
4
9.53 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

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Francium
  
Osmium
  

Next Element
Actinium
  
Platinum
  

Valence Electron Potential
20.10 (-eV)   
99+
140.00 (-eV)   
5

Lattice Constant
514.80 pm   
13
383.90 pm   
26

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

Lattice C/A Ratio
Not Available   
Not Available   

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