Atomic Structure of Cerium and Polonium
Atomic Properties
Atomic Number
58
99+
84
32
Electron Configuration
[Xe] 4f1 5d1 6s2
[Xe] 4f14 5d10 6s2 6p4
Crystal Structure
Double Hexagonal Close Packed (DHCP)
Monoclinic (MON)
Crystal Lattice
DHCP-Crystal-Structure-of-Cerium.jpg#100
MON-Crystal-Structure-of-Polonium.jpg#100
Atom
Number of Protons
58
99+
84
32
Number of Neutrons
82
99+
125
19
Number of Electrons
58
99+
84
32
Radius of an Atom
Atomic Radius
181.80 pm
12
168.00 pm
23
Covalent Radius
204.00 pm
8
140.00 pm
99+
Van der Waals Radius
235.00 pm
17
197.00 pm
29
Atomic Weight
140.12 amu
99+
209.00 amu
28
Atomic Volume
20.67 cm3/mol
17
22.23 cm3/mol
13
Adjacent Atomic Numbers
Valence Electron Potential
41.78 (-eV)
99+
Not Available
Lattice Constant
362.00 pm
34
335.90 pm
99+
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Lattice C/A Ratio
Not Available
Not Available
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