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Atomic Structure of Iridium and Scandium


Atomic Structure of Scandium and Iridium


Atomic Properties

Atomic Number
77   
39
21   
99+

Electron Configuration
[Xe] 4f14 5d7 6s2   
[Ar] 3d1 4s2   

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

Crystal Lattice
FCC-Crystal-Structure-of-Iridium.jpg#100   
HCP-Crystal-Structure-of-Scandium.jpg#100   

Atom
  
  

Number of Protons
74   
99+
21   
99+

Number of Neutrons
110   
27
24   
99+

Number of Electrons
74   
99+
21   
99+

Radius of an Atom
  
  

Atomic Radius
136.00 pm   
99+
162.00 pm   
26

Covalent Radius
141.00 pm   
99+
170.00 pm   
25

Van der Waals Radius
202.00 pm   
27
211.00 pm   
25

Atomic Weight
192.22 amu   
34
44.96 amu   
99+

Atomic Volume
9.53 cm3/mol   
99+
15.00 cm3/mol   
34

Adjacent Atomic Numbers
  
  

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Osmium
  
Calcium
  

Next Element
Platinum
  
Titanium
  

Valence Electron Potential
140.00 (-eV)   
5
58.00 (-eV)   
24

Lattice Constant
383.90 pm   
26
330.90 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.59   
7

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