Home

Transition Metals + -

Actinide Metals + -

Lanthanide Metals + -

Post-Transition Metals + -

Alkaline Earth Metals + -

Compare Metals

Atomic Structure of Samarium and Promethium

Samarium
Promethium
Atomic Structure of Promethium and Samarium


Atomic Properties
Atomic Number
62   
99+
61   
99+
Electron Configuration
[Xe] 4f6 6s2   
[Xe] 4f5 6s2   
Crystal Structure
Rhombohedral (RHO)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
RHO-Crystal-Structure-of-Samarium.jpg#100   
DHCP-Crystal-Structure-of-Promethium.jpg#100   
Atom
  
  
Number of Protons
62   
99+
61   
99+
Number of Neutrons
88   
39
84   
40
Number of Electrons
62   
99+
61   
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm   
14
183.00 pm   
10
Covalent Radius
198.00 pm   
13
199.00 pm   
12
Van der Waals Radius
229.00 pm   
20
236.00 pm   
16
Atomic Weight
150.36 amu   
99+
145.00 amu   
99+
Atomic Volume
19.95 cm3/mol   
19
22.39 cm3/mol   
12
Adjacent Atomic Numbers
  
  
Previous Element
Promethium
  
Neodymium
  
Next Element
Europium
  
Samarium
  
Valence Electron Potential
44.80 (-eV)   
37
44.10 (-eV)   
39
Lattice Constant
362.10 pm   
33
Not Available   
Lattice Angles
π/2, π/2, 2 π/3   
Unknown   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical >>
<< Chemical

Compare Lanthanide Series

Lanthanide Metals

Lanthanide Metals

» More Lanthanide Metals

Compare Lanthanide Series

» More Compare Lanthanide Series
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!