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Atomic Structure of Yttrium and Iridium


Atomic Structure of Iridium and Yttrium


Atomic Properties

Atomic Number
39   
99+
77   
39

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

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

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

Atom
  
  

Number of Protons
39   
99+
74   
99+

Number of Neutrons
50   
99+
110   
27

Number of Electrons
39   
99+
74   
99+

Radius of an Atom
  
  

Atomic Radius
180.00 pm   
14
136.00 pm   
99+

Covalent Radius
190.00 pm   
18
141.00 pm   
99+

Van der Waals Radius
200.00 pm   
28
202.00 pm   
27

Atomic Weight
88.91 amu   
99+
192.22 amu   
34

Atomic Volume
19.80 cm3/mol   
21
9.53 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

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Osmium
  

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Zirconium
  
Platinum
  

Valence Electron Potential
48.00 (-eV)   
30
140.00 (-eV)   
5

Lattice Constant
364.74 pm   
31
383.90 pm   
26

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

Lattice C/A Ratio
1.57   
16
Not Available   

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