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Atomic Structure of Roentgenium and Samarium


Atomic Structure of Samarium and Roentgenium


Atomic Properties

Atomic Number
111   
7
62   
99+

Electron Configuration
[Rn] 5f14 6d9 7s2   
[Xe] 4f6 6s2   

Crystal Structure
Body Centered Cubic (BCC)   
Rhombohedral (RHO)   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
RHO-Crystal-Structure-of-Samarium.jpg#100   

Atom
  
  

Number of Protons
111   
7
62   
99+

Number of Neutrons
161   
3
88   
39

Number of Electrons
111   
7
62   
99+

Radius of an Atom
  
  

Atomic Radius
Not Available   
180.00 pm   
14

Covalent Radius
Not Available   
198.00 pm   
13

Van der Waals Radius
Not Available   
229.00 pm   
20

Atomic Weight
281.00 amu   
6
150.36 amu   
99+

Atomic Volume
Not Available   
19.95 cm3/mol   
19

Adjacent Atomic Numbers
  
  

Previous Element
Promethium
  

Next Element
Europium
  

Valence Electron Potential
Not Available   
44.80 (-eV)   
37

Lattice Constant
Not Available   
362.10 pm   
33

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

Lattice C/A Ratio
Not Available   
Not Available   

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