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Atomic Structure of Technetium and Beryllium

Technetium
Beryllium
Atomic Structure of Beryllium and Technetium


Atomic Properties
Atomic Number
43   
99+
4   
99+
Electron Configuration
[Kr] 4d5 5s2   
[He] 2s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100   
HCP-Crystal-Structure-of-Beryllium.jpg#100   
Atom
  
  
Number of Protons
43   
99+
4   
99+
Number of Neutrons
55   
99+
5   
99+
Number of Electrons
43   
99+
4   
99+
Radius of an Atom
  
  
Atomic Radius
136.00 pm   
99+
112.00 pm   
99+
Covalent Radius
147.00 pm   
37
96.00 pm   
99+
Van der Waals Radius
200.00 pm   
28
153.00 pm   
99+
Atomic Weight
98.00 amu   
99+
9.01 amu   
99+
Atomic Volume
8.50 cm3/mol   
99+
5.00 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
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Molybdenum
  
Lithium
  
Next Element
Ruthenium
  
Sodium
  
Valence Electron Potential
180.00 (-eV)   
3
82.00 (-eV)   
15
Lattice Constant
273.50 pm   
99+
228.58 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.60   
5
1.57   
18
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