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Atomic Structure of Technetium and Sodium


Atomic Structure of Sodium and Technetium


Atomic

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  
11

Covalent Radius
147.00 pm  
39
166.00 pm  
29

Van der Waals Radius
200.00 pm  
35
227.00 pm  
26

Atomic Weight
98.00 amu  
99+
22.99 amu  
99+

Atomic Volume
8.50 cm3/mol  
99+
23.70 cm3/mol  
14

Adjacent Atomic Numbers
  
  

Previous Element
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  
22

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

Lattice C/A Ratio
1.60  
21
1.01  
99+

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