Atomic Structure of Samarium and Neodymium
Atomic Properties
Atomic Number
62
99+
60
99+
Electron Configuration
[Xe] 4f6 6s2
[Xe] 4f4 6s2
Crystal Structure
Rhombohedral (RHO)
Double Hexagonal Close Packed (DHCP)
Crystal Lattice
RHO-Crystal-Structure-of-Samarium.jpg#100
DHCP-Crystal-Structure-of-Neodymium.jpg#100
Atom
Number of Protons
62
99+
60
99+
Number of Neutrons
88
39
84
40
Number of Electrons
62
99+
60
99+
Radius of an Atom
Atomic Radius
180.00 pm
14
181.00 pm
13
Covalent Radius
198.00 pm
13
201.00 pm
10
Van der Waals Radius
229.00 pm
20
229.00 pm
20
Atomic Weight
150.36 amu
99+
144.24 amu
99+
Atomic Volume
19.95 cm3/mol
19
20.60 cm3/mol
18
Adjacent Atomic Numbers
Valence Electron Potential
44.80 (-eV)
37
43.40 (-eV)
99+
Lattice Constant
362.10 pm
33
365.80 pm
30
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
Lattice C/A Ratio
Not Available
1.61
4
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