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Atomic Structure of Americium and Roentgenium


Atomic Structure of Roentgenium and Americium


Atomic Properties

Atomic Number
95   
23
111   
7

Electron Configuration
[Rn] 5f7 7s2   
[Rn] 5f14 6d9 7s2   

Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Body Centered Cubic (BCC)   

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

Atom
  
  

Number of Protons
95   
23
111   
7

Number of Neutrons
148   
12
161   
3

Number of Electrons
95   
23
111   
7

Radius of an Atom
  
  

Atomic Radius
173.00 pm   
21
Not Available   

Covalent Radius
180.00 pm   
21
Not Available   

Van der Waals Radius
244.00 pm   
10
Not Available   

Atomic Weight
243.00 amu   
20
281.00 amu   
6

Atomic Volume
17.86 cm3/mol   
29
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Plutonium
  

Next Element
Curium
  

Valence Electron Potential
44.00 (-eV)   
40
Not Available   

Lattice Constant
346.81 pm   
99+
Not Available   

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

Lattice C/A Ratio
Not Available   
Not Available   

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