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Atomic Structure of Roentgenium and Einsteinium

Roentgenium
Einsteinium
Atomic Structure of Einsteinium and Roentgenium


Atomic
Atomic Number
111  
7
99  
19
Electron Configuration
[Rn] 5f14 6d9 7s2  
[Rn] 5f11 7s2  
Crystal Structure
Body Centered Cubic (BCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
FCC-Crystal-Structure-of-Einsteinium.jpg#100  
Atom
  
  
Number of Protons
111  
7
99  
19
Number of Neutrons
161  
4
153  
10
Number of Electrons
111  
7
99  
19
Radius of an Atom
  
  
Atomic Radius
200.00 pm  
7
186.00 pm  
11
Covalent Radius
126.00 pm  
99+
186.00 pm  
21
Van der Waals Radius
280.00 pm  
6
0.00 pm  
99+
Atomic Weight
281.00 amu  
6
252.00 amu  
16
Atomic Volume
28.70 cm3/mol  
12
17.04 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Darmstadtium
  
Californium
  
Next Element
Copernicium
  
Fermium
  
Valence Electron Potential
11.90 (-eV)  
99+
0.00 (-eV)  
99+
Lattice Constant
0.00 pm  
99+
582.00 pm  
8
Lattice Angles
-  
-  
Lattice C/A Ratio
1.90  
1
1.29  
99+
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