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Atomic Structure of Einsteinium and Samarium


Atomic Structure of Samarium and Einsteinium


Atomic

Atomic Number
99  
19
62  
99+

Electron Configuration
[Rn] 5f11 7s2  
[Xe] 4f6 6s2  

Crystal Structure
Face Centered Cubic (FCC)  
Rhombohedral (RHO)  

Crystal Lattice
FCC-Crystal-Structure-of-Einsteinium.jpg#100  
RHO-Crystal-Structure-of-Samarium.jpg#100  

Atom
  
  

Number of Protons
99  
19
62  
99+

Number of Neutrons
153  
10
88  
40

Number of Electrons
99  
19
62  
99+

Radius of an Atom
  
  

Atomic Radius
186.00 pm  
11
180.00 pm  
16

Covalent Radius
186.00 pm  
21
198.00 pm  
13

Van der Waals Radius
0.00 pm  
99+
229.00 pm  
25

Atomic Weight
252.00 amu  
16
150.36 amu  
99+

Atomic Volume
17.04 cm3/mol  
99+
19.95 cm3/mol  
31

Adjacent Atomic Numbers
  
  

Previous Element

Next Element
Fermium
  
Europium
  

Valence Electron Potential
0.00 (-eV)  
99+
44.80 (-eV)  
38

Lattice Constant
582.00 pm  
8
362.10 pm  
37

Lattice Angles
-  
π/2, π/2, 2 π/3  

Lattice C/A Ratio
1.29  
99+
1.62  
15

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