Home
Compare Metals


Atomic Structure of Actinium and Iridium


Atomic Structure of Iridium and Actinium


Atomic Properties

Atomic Number
89   
29
77   
39

Electron Configuration
[Rn] 6d1 7s2   
[Xe] 4f14 5d7 6s2   

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

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

Atom
  
  

Number of Protons
89   
29
74   
99+

Number of Neutrons
138   
16
110   
27

Number of Electrons
89   
29
74   
99+

Radius of an Atom
  
  

Atomic Radius
195.00 pm   
7
136.00 pm   
99+

Covalent Radius
Not Available   
141.00 pm   
99+

Van der Waals Radius
Not Available   
202.00 pm   
27

Atomic Weight
227.00 amu   
25
192.22 amu   
34

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

Adjacent Atomic Numbers
  
  

Previous Element
Radium
  
Osmium
  

Next Element
Thorium
  
Platinum
  

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

Lattice Constant
567.00 pm   
8
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   

Mechanical >>
<< Chemical

Compare Actinide Series

Actinide Metals

Actinide Metals

» More Actinide Metals

Compare Actinide Series

» More Compare Actinide Series