Atomic Structure of Erbium and Plutonium
Atomic Properties
Atomic Number
68
99+
94
24
Electron Configuration
[Xe] 4f12 6s2
[Rn] 5f6 7s2
Crystal Structure
Hexagonal Close Packed (HCP)
Monoclinic (MON)
Crystal Lattice
HCP-Crystal-Structure-of-Erbium.jpg#100
MON-Crystal-Structure-of-Plutonium.jpg#100
Atom
Number of Protons
68
99+
94
24
Number of Neutrons
99
33
150
11
Number of Electrons
68
99+
94
24
Radius of an Atom
Atomic Radius
176.00 pm
18
159.00 pm
28
Covalent Radius
189.00 pm
19
187.00 pm
20
Van der Waals Radius
Not Available
200.00 pm
28
Atomic Weight
167.26 amu
99+
244.00 amu
19
Atomic Volume
18.40 cm3/mol
25
12.32 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
49.00 (-eV)
29
64.90 (-eV)
21
Lattice Constant
355.88 pm
39
618.30 pm
4
Lattice Angles
π/2, π/2, 2 π/3
NA
Lattice C/A Ratio
1.57
17
Not Available
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