Atomic Structure of Einsteinium and Actinium
Atomic Properties
Atomic Number
99
19
89
29
Electron Configuration
[Rn] 5f11 7s2
[Rn] 6d1 7s2
Crystal Structure
Face Centered Cubic (FCC)
Face Centered Cubic (FCC)
Crystal Lattice
FCC-Crystal-Structure-of-Einsteinium.jpg#100
FCC-Crystal-Structure-of-Actinium.jpg#100
Atom
Number of Protons
99
19
89
29
Number of Neutrons
153
9
138
16
Number of Electrons
99
19
89
29
Radius of an Atom
Atomic Radius
186.00 pm
9
195.00 pm
7
Atomic Weight
252.00 amu
16
227.00 amu
25
Atomic Volume
Not Available
22.54 cm3/mol
11
Adjacent Atomic Numbers
Valence Electron Potential
Not Available
38.60 (-eV)
99+
Lattice Constant
Not Available
567.00 pm
8
Lattice Angles
NA
π/2, π/2, π/2
Lattice C/A Ratio
Not Available
Not Available
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