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Atomic Structure of Samarium and Roentgenium


Atomic Structure of Roentgenium and Samarium


Atomic Properties

Atomic Number
62   
99+
111   
7

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

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

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

Atom
  
  

Number of Protons
62   
99+
111   
7

Number of Neutrons
88   
39
161   
3

Number of Electrons
62   
99+
111   
7

Radius of an Atom
  
  

Atomic Radius
180.00 pm   
14
Not Available   

Covalent Radius
198.00 pm   
13
Not Available   

Van der Waals Radius
229.00 pm   
20
Not Available   

Atomic Weight
150.36 amu   
99+
281.00 amu   
6

Atomic Volume
19.95 cm3/mol   
19
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Promethium
  

Next Element
Europium
  

Valence Electron Potential
44.80 (-eV)   
37
Not Available   

Lattice Constant
362.10 pm   
33
Not Available   

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

Lattice C/A Ratio
Not Available   
Not Available   

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