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Atomic Structure of Osmium and Samarium


Atomic Structure of Samarium and Osmium


Atomic Properties

Atomic Number
76   
40
62   
99+

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

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

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

Atom
  
  

Number of Protons
76   
39
62   
99+

Number of Neutrons
114   
25
88   
39

Number of Electrons
76   
39
62   
99+

Radius of an Atom
  
  

Atomic Radius
133.80 pm   
99+
180.00 pm   
14

Covalent Radius
Not Available   
198.00 pm   
13

Van der Waals Radius
216.00 pm   
24
229.00 pm   
20

Atomic Weight
190.23 amu   
35
150.36 amu   
99+

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

Adjacent Atomic Numbers
  
  

Previous Element
Rhenium
  
Promethium
  

Next Element
Iridium
  
Europium
  

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

Lattice Constant
273.44 pm   
99+
362.10 pm   
33

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

Lattice C/A Ratio
1.58   
14
Not Available   

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