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Atomic Structure of Polonium and Americium


Atomic Structure of Americium and Polonium


Atomic Properties

Atomic Number
84   
32
95   
23

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

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

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

Atom
  
  

Number of Protons
84   
32
95   
23

Number of Neutrons
125   
19
148   
12

Number of Electrons
84   
32
95   
23

Radius of an Atom
  
  

Atomic Radius
168.00 pm   
23
173.00 pm   
21

Covalent Radius
140.00 pm   
99+
180.00 pm   
21

Van der Waals Radius
197.00 pm   
29
244.00 pm   
10

Atomic Weight
209.00 amu   
28
243.00 amu   
20

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

Adjacent Atomic Numbers
  
  

Previous Element
Bismuth
  
Plutonium
  

Next Element
Francium
  
Curium
  

Valence Electron Potential
Not Available   
44.00 (-eV)   
40

Lattice Constant
335.90 pm   
99+
346.81 pm   
99+

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

Lattice C/A Ratio
Not Available   
Not Available   

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