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Atomic Structure of Technetium and Sodium

Technetium
Sodium
Atomic Structure of Sodium and Technetium


Atomic Properties
Atomic Number
43   
99+
11   
99+
Electron Configuration
[Kr] 4d5 5s2   
[Ne] 3s1   
Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
43   
99+
11   
99+
Number of Neutrons
55   
99+
12   
99+
Number of Electrons
43   
99+
11   
99+
Radius of an Atom
  
  
Atomic Radius
136.00 pm   
99+
186.00 pm   
9
Covalent Radius
147.00 pm   
37
166.00 pm   
27
Van der Waals Radius
200.00 pm   
28
227.00 pm   
21
Atomic Weight
98.00 amu   
99+
22.99 amu   
99+
Atomic Volume
8.50 cm3/mol   
99+
23.70 cm3/mol   
10
Adjacent Atomic Numbers
  
  
Previous Element
Molybdenum
  
Beryllium
  
Next Element
Ruthenium
  
Magnesium
  
Valence Electron Potential
180.00 (-eV)   
3
14.10 (-eV)   
99+
Lattice Constant
273.50 pm   
99+
429.06 pm   
19
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.60   
5
Not Available   
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