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Atomic Structure of Technetium and Einsteinium

Technetium
Einsteinium
Atomic Structure of Einsteinium and Technetium


Atomic
Atomic Number
43  
99+
99  
19
Electron Configuration
[Kr] 4d5 5s2  
[Rn] 5f11 7s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Face Centered Cubic (FCC)  
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100  
FCC-Crystal-Structure-of-Einsteinium.jpg#100  
Atom
  
  
Number of Protons
43  
99+
99  
19
Number of Neutrons
55  
99+
153  
10
Number of Electrons
43  
99+
99  
19
Radius of an Atom
  
  
Atomic Radius
136.00 pm  
99+
186.00 pm  
11
Covalent Radius
147.00 pm  
39
186.00 pm  
21
Van der Waals Radius
200.00 pm  
35
0.00 pm  
99+
Atomic Weight
98.00 amu  
99+
252.00 amu  
16
Atomic Volume
8.50 cm3/mol  
99+
17.04 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Molybdenum
  
Californium
  
Next Element
Ruthenium
  
Fermium
  
Valence Electron Potential
180.00 (-eV)  
3
0.00 (-eV)  
99+
Lattice Constant
273.50 pm  
99+
582.00 pm  
8
Lattice Angles
π/2, π/2, 2 π/3  
-  
Lattice C/A Ratio
1.60  
21
1.29  
99+
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