Atomic Structure of Samarium and Cerium
Atomic Properties
Atomic Number
62
99+
58
99+
Electron Configuration
[Xe] 4f6 6s2
[Xe] 4f1 5d1 6s2
Crystal Structure
Rhombohedral (RHO)
Double Hexagonal Close Packed (DHCP)
Crystal Lattice
RHO-Crystal-Structure-of-Samarium.jpg#100
DHCP-Crystal-Structure-of-Cerium.jpg#100
Atom
Number of Protons
62
99+
58
99+
Number of Neutrons
88
39
82
99+
Number of Electrons
62
99+
58
99+
Radius of an Atom
Atomic Radius
180.00 pm
14
181.80 pm
12
Covalent Radius
198.00 pm
13
204.00 pm
8
Van der Waals Radius
229.00 pm
20
235.00 pm
17
Atomic Weight
150.36 amu
99+
140.12 amu
99+
Atomic Volume
19.95 cm3/mol
19
20.67 cm3/mol
17
Adjacent Atomic Numbers
Valence Electron Potential
44.80 (-eV)
37
41.78 (-eV)
99+
Lattice Constant
362.10 pm
33
362.00 pm
34
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
Lattice C/A Ratio
Not Available
Not Available
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