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Atomic Structure of Americium and Polonium


Atomic Structure of Polonium and Americium


Atomic Properties

Atomic Number
95   
23
84   
32

Electron Configuration
[Rn] 5f7 7s2   
[Xe] 4f14 5d10 6s2 6p4   

Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Monoclinic (MON)   

Crystal Lattice
DHCP-Crystal-Structure-of-Americium.jpg#100   
MON-Crystal-Structure-of-Polonium.jpg#100   

Atom
  
  

Number of Protons
95   
23
84   
32

Number of Neutrons
148   
12
125   
19

Number of Electrons
95   
23
84   
32

Radius of an Atom
  
  

Atomic Radius
173.00 pm   
21
168.00 pm   
23

Covalent Radius
180.00 pm   
21
140.00 pm   
99+

Van der Waals Radius
244.00 pm   
10
197.00 pm   
29

Atomic Weight
243.00 amu   
20
209.00 amu   
28

Atomic Volume
17.86 cm3/mol   
29
22.23 cm3/mol   
13

Adjacent Atomic Numbers
  
  

Previous Element
Plutonium
  
Bismuth
  

Next Element
Curium
  
Francium
  

Valence Electron Potential
44.00 (-eV)   
40
Not Available   

Lattice Constant
346.81 pm   
99+
335.90 pm   
99+

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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