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Atomic Structure of Technetium and Strontium

Technetium
Strontium
Atomic Structure of Strontium and Technetium


Atomic
Atomic Number
43  
99+
38  
99+
Electron Configuration
[Kr] 4d5 5s2  
[Kr] 5s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Face Centered Cubic (FCC)  
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100  
FCC-Crystal-Structure-of-Strontium.jpg#100  
Atom
  
  
Number of Protons
43  
99+
38  
99+
Number of Neutrons
55  
99+
50  
99+
Number of Electrons
43  
99+
38  
99+
Radius of an Atom
  
  
Atomic Radius
136.00 pm  
99+
215.00 pm  
6
Covalent Radius
147.00 pm  
39
195.00 pm  
15
Van der Waals Radius
200.00 pm  
35
249.00 pm  
11
Atomic Weight
98.00 amu  
99+
87.62 amu  
99+
Atomic Volume
8.50 cm3/mol  
99+
33.70 cm3/mol  
9
Adjacent Atomic Numbers
  
  
Previous Element
Molybdenum
  
Rubidium
  
Next Element
Ruthenium
  
Yttrium
  
Valence Electron Potential
180.00 (-eV)  
3
25.70 (-eV)  
99+
Lattice Constant
273.50 pm  
99+
608.49 pm  
6
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, π/2  
Lattice C/A Ratio
1.60  
21
1.57  
40
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