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Atomic Structure of Americium and Francium


Atomic Structure of Francium and Americium


Atomic Properties

Atomic Number
95   
23
87   
31

Electron Configuration
[Rn] 5f7 7s2   
[Rn] 7s1   

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
87   
31

Number of Neutrons
148   
12
136   
17

Number of Electrons
95   
23
87   
31

Radius of an Atom
  
  

Atomic Radius
173.00 pm   
21
Not Available   

Covalent Radius
180.00 pm   
21
260.00 pm   
1

Van der Waals Radius
244.00 pm   
10
348.00 pm   
1

Atomic Weight
243.00 amu   
20
223.00 amu   
27

Atomic Volume
17.86 cm3/mol   
29
Not Available   

Adjacent Atomic Numbers
  
  

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Polonium
  

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Curium
  
Radium
  

Valence Electron Potential
44.00 (-eV)   
40
8.00 (-eV)   
99+

Lattice Constant
346.81 pm   
99+
Not Available   

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

Lattice C/A Ratio
Not Available   
Not Available   

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