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Atomic Structure of Iridium and Yttrium


Atomic Structure of Yttrium and Iridium


Atomic Properties

Atomic Number
77   
39
39   
99+

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

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

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

Atom
  
  

Number of Protons
74   
99+
39   
99+

Number of Neutrons
110   
27
50   
99+

Number of Electrons
74   
99+
39   
99+

Radius of an Atom
  
  

Atomic Radius
136.00 pm   
99+
180.00 pm   
14

Covalent Radius
141.00 pm   
99+
190.00 pm   
18

Van der Waals Radius
202.00 pm   
27
200.00 pm   
28

Atomic Weight
192.22 amu   
34
88.91 amu   
99+

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

Adjacent Atomic Numbers
  
  

Previous Element
Osmium
  
Strontium
  

Next Element
Platinum
  
Zirconium
  

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

Lattice Constant
383.90 pm   
26
364.74 pm   
31

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

Lattice C/A Ratio
Not Available   
1.57   
16

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