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Atomic Structure of Technetium and Beryllium


Atomic Structure of Beryllium and Technetium


Atomic

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  
39
96.00 pm  
99+

Van der Waals Radius
200.00 pm  
35
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
  
  

Previous Element
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  
21
1.57  
99+

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