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Atomic Structure of Samarium and Osmium


Atomic Structure of Osmium and Samarium


Atomic Properties

Atomic Number
62   
99+
76   
40

Electron Configuration
[Xe] 4f6 6s2   
[Xe] 4f14 5d6 6s2   

Crystal Structure
Rhombohedral (RHO)   
Hexagonal Close Packed (HCP)   

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

Atom
  
  

Number of Protons
62   
99+
76   
39

Number of Neutrons
88   
39
114   
25

Number of Electrons
62   
99+
76   
39

Radius of an Atom
  
  

Atomic Radius
180.00 pm   
14
133.80 pm   
99+

Covalent Radius
198.00 pm   
13
Not Available   

Van der Waals Radius
229.00 pm   
20
216.00 pm   
24

Atomic Weight
150.36 amu   
99+
190.23 amu   
35

Atomic Volume
19.95 cm3/mol   
19
8.49 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Promethium
  
Rhenium
  

Next Element
Europium
  
Iridium
  

Valence Electron Potential
44.80 (-eV)   
37
91.40 (-eV)   
12

Lattice Constant
362.10 pm   
33
273.44 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.58   
14

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