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Atomic Structure of Iridium and Curium


Atomic Structure of Curium and Iridium


Atomic Properties

Atomic Number
77   
39
96   
22

Electron Configuration
[Xe] 4f14 5d7 6s2   
[Rn] 5f7 6d1 7s2   

Crystal Structure
Face Centered Cubic (FCC)   
Double Hexagonal Close Packed (DHCP)   

Crystal Lattice
FCC-Crystal-Structure-of-Iridium.jpg#100   
DHCP-Crystal-Structure-of-Curium.jpg#100   

Atom
  
  

Number of Protons
74   
99+
96   
22

Number of Neutrons
110   
27
151   
10

Number of Electrons
74   
99+
96   
22

Radius of an Atom
  
  

Atomic Radius
136.00 pm   
99+
174.00 pm   
20

Covalent Radius
141.00 pm   
99+
169.00 pm   
26

Van der Waals Radius
202.00 pm   
27
200.00 pm   
28

Atomic Weight
192.22 amu   
34
247.00 amu   
18

Atomic Volume
9.53 cm3/mol   
99+
18.28 cm3/mol   
26

Adjacent Atomic Numbers
  
  

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Osmium
  
Americium
  

Next Element
Platinum
  
Berkelium
  

Valence Electron Potential
140.00 (-eV)   
5
44.50 (-eV)   
38

Lattice Constant
383.90 pm   
26
Not Available   

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

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