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Atomic Structure of Americium and Cobalt

Americium
Cobalt
Atomic Structure of Cobalt and Americium


Atomic Properties
Atomic Number
95   
23
22   
99+
Electron Configuration
[Rn] 5f7 7s2   
[Ar] 3d2 4s2   
Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
DHCP-Crystal-Structure-of-Americium.jpg#100   
HCP-Crystal-Structure-of-Cobalt.jpg#100   
Atom
  
  
Number of Protons
95   
23
22   
99+
Number of Neutrons
148   
12
26   
99+
Number of Electrons
95   
23
22   
99+
Radius of an Atom
  
  
Atomic Radius
173.00 pm   
21
147.00 pm   
34
Covalent Radius
180.00 pm   
21
160.00 pm   
30
Van der Waals Radius
244.00 pm   
10
200.00 pm   
28
Atomic Weight
243.00 amu   
20
47.87 amu   
99+
Atomic Volume
17.86 cm3/mol   
29
10.64 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Plutonium
  
Iron
  
Next Element
Curium
  
Nickel
  
Valence Electron Potential
44.00 (-eV)   
40
95.20 (-eV)   
10
Lattice Constant
346.81 pm   
99+
295.08 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
Not Available   
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