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Atomic Structure of Einsteinium and Thallium


Atomic Structure of Thallium and Einsteinium


Atomic Properties

Atomic Number
99   
19
81   
35

Electron Configuration
[Rn] 5f11 7s2   
[Xe] 4f14 5d10 6s2 6p1   

Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
FCC-Crystal-Structure-of-Einsteinium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
99   
19
81   
35

Number of Neutrons
153   
9
123   
20

Number of Electrons
99   
19
81   
35

Radius of an Atom
  
  

Atomic Radius
186.00 pm   
9
170.00 pm   
22

Covalent Radius
Not Available   
145.00 pm   
39

Van der Waals Radius
Not Available   
196.00 pm   
30

Atomic Weight
252.00 amu   
16
204.38 amu   
31

Atomic Volume
Not Available   
17.20 cm3/mol   
31

Adjacent Atomic Numbers
  
  

Previous Element
Mercury
  

Next Element
Fermium
  
Lead
  

Valence Electron Potential
Not Available   
9.60 (-eV)   
99+

Lattice Constant
Not Available   
345.66 pm   
99+

Lattice Angles
NA   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
1.60   
6

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