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Atomic Structure of Calcium and Iridium

Calcium
Iridium
Atomic Structure of Iridium and Calcium


Atomic Properties
Atomic Number
20   
99+
77   
39
Electron Configuration
[Ar] 4s2   
[Xe] 4f14 5d7 6s2   
Crystal Structure
Face Centered Cubic (FCC)   
Face Centered Cubic (FCC)   
Crystal Lattice
FCC-Crystal-Structure-of-Calcium.jpg#100   
FCC-Crystal-Structure-of-Iridium.jpg#100   
Atom
  
  
Number of Protons
20   
99+
74   
99+
Number of Neutrons
20   
99+
110   
27
Number of Electrons
20   
99+
74   
99+
Radius of an Atom
  
  
Atomic Radius
197.00 pm   
6
136.00 pm   
99+
Covalent Radius
176.00 pm   
22
141.00 pm   
99+
Van der Waals Radius
231.00 pm   
19
202.00 pm   
27
Atomic Weight
40.08 amu   
99+
192.22 amu   
34
Atomic Volume
29.90 cm3/mol   
7
9.53 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Potassium
  
Osmium
  
Next Element
Scandium
  
Platinum
  
Valence Electron Potential
29.00 (-eV)   
99+
140.00 (-eV)   
5
Lattice Constant
558.84 pm   
9
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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