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Atomic Structure of Americium and Lutetium


Atomic Structure of Lutetium and Americium


Atomic Properties

Atomic Number
95   
23
71   
99+

Electron Configuration
[Rn] 5f7 7s2   
[Xe] 6s2 4f14 5d1   

Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
DHCP-Crystal-Structure-of-Americium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
95   
23
71   
99+

Number of Neutrons
148   
12
104   
30

Number of Electrons
95   
23
71   
99+

Radius of an Atom
  
  

Atomic Radius
173.00 pm   
21
174.00 pm   
20

Covalent Radius
180.00 pm   
21
187.00 pm   
20

Van der Waals Radius
244.00 pm   
10
221.00 pm   
22

Atomic Weight
243.00 amu   
20
174.97 amu   
40

Atomic Volume
17.86 cm3/mol   
29
17.78 cm3/mol   
30

Adjacent Atomic Numbers
  
  

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Plutonium
  
Ytterbium
  

Next Element
Curium
  
Hafnium
  

Valence Electron Potential
44.00 (-eV)   
40
50.90 (-eV)   
26

Lattice Constant
346.81 pm   
99+
350.31 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.59   
10

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