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Atomic Structure of Americium and Radium

Americium
Radium
Atomic Structure of Radium and Americium


Atomic Properties
Atomic Number
95   
23
88   
30
Electron Configuration
[Rn] 5f7 7s2   
[Rn] 7s2   
Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Body Centered Cubic (BCC)   
Crystal Lattice
DHCP-Crystal-Structure-of-Americium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
95   
23
88   
30
Number of Neutrons
148   
12
138   
16
Number of Electrons
95   
23
88   
30
Radius of an Atom
  
  
Atomic Radius
173.00 pm   
21
Not Available   
Covalent Radius
180.00 pm   
21
221.00 pm   
3
Van der Waals Radius
244.00 pm   
10
283.00 pm   
4
Atomic Weight
243.00 amu   
20
226.00 amu   
26
Atomic Volume
17.86 cm3/mol   
29
45.20 cm3/mol   
4
Adjacent Atomic Numbers
  
  
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Plutonium
  
Francium
  
Next Element
Curium
  
Actinium
  
Valence Electron Potential
44.00 (-eV)   
40
20.10 (-eV)   
99+
Lattice Constant
346.81 pm   
99+
514.80 pm   
13
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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