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Atomic Structure of Americium and Plutonium


Atomic Structure of Plutonium and Americium


Atomic Properties

Atomic Number
95   
23
94   
24

Electron Configuration
[Rn] 5f7 7s2   
[Rn] 5f6 7s2   

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

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

Atom
  
  

Number of Protons
95   
23
94   
24

Number of Neutrons
148   
12
150   
11

Number of Electrons
95   
23
94   
24

Radius of an Atom
  
  

Atomic Radius
173.00 pm   
21
159.00 pm   
28

Covalent Radius
180.00 pm   
21
187.00 pm   
20

Van der Waals Radius
244.00 pm   
10
200.00 pm   
28

Atomic Weight
243.00 amu   
20
244.00 amu   
19

Atomic Volume
17.86 cm3/mol   
29
12.32 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Plutonium
  
Neptunium
  

Next Element
Curium
  
Americium
  

Valence Electron Potential
44.00 (-eV)   
40
64.90 (-eV)   
21

Lattice Constant
346.81 pm   
99+
618.30 pm   
4

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

Lattice C/A Ratio
Not Available   
Not Available   

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