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Atomic Structure of Americium and Beryllium


Atomic Structure of Beryllium and Americium


Atomic Properties

Atomic Number
95   
23
4   
99+

Electron Configuration
[Rn] 5f7 7s2   
[He] 2s2   

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

Crystal Lattice
DHCP-Crystal-Structure-of-Americium.jpg#100   
HCP-Crystal-Structure-of-Beryllium.jpg#100   

Atom
  
  

Number of Protons
95   
23
4   
99+

Number of Neutrons
148   
12
5   
99+

Number of Electrons
95   
23
4   
99+

Radius of an Atom
  
  

Atomic Radius
173.00 pm   
21
112.00 pm   
99+

Covalent Radius
180.00 pm   
21
96.00 pm   
99+

Van der Waals Radius
244.00 pm   
10
153.00 pm   
99+

Atomic Weight
243.00 amu   
20
9.01 amu   
99+

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

Adjacent Atomic Numbers
  
  

Previous Element
Plutonium
  
Lithium
  

Next Element
Curium
  
Sodium
  

Valence Electron Potential
44.00 (-eV)   
40
82.00 (-eV)   
15

Lattice Constant
346.81 pm   
99+
228.58 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.57   
18

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