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Atomic Structure of Iridium and Gadolinium


Atomic Structure of Gadolinium and Iridium


Atomic Properties

Atomic Number
77   
39
64   
99+

Electron Configuration
[Xe] 4f14 5d7 6s2   
[Xe] 4f7 5d1 6s2   

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

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

Atom
  
  

Number of Protons
74   
99+
64   
99+

Number of Neutrons
110   
27
93   
37

Number of Electrons
74   
99+
64   
99+

Radius of an Atom
  
  

Atomic Radius
136.00 pm   
99+
180.00 pm   
14

Covalent Radius
141.00 pm   
99+
196.00 pm   
14

Van der Waals Radius
202.00 pm   
27
237.00 pm   
15

Atomic Weight
192.22 amu   
34
47.87 amu   
99+

Atomic Volume
9.53 cm3/mol   
99+
19.90 cm3/mol   
20

Adjacent Atomic Numbers
  
  

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Osmium
  
Europium
  

Next Element
Platinum
  
Terbium
  

Valence Electron Potential
140.00 (-eV)   
5
46.10 (-eV)   
34

Lattice Constant
383.90 pm   
26
363.60 pm   
32

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

Lattice C/A Ratio
Not Available   
1.59   
9

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