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Atomic Structure of Tin and Technetium

Tin
Technetium
Atomic Structure of Technetium and Tin


Atomic
Atomic Number
50  
99+
43  
99+
Electron Configuration
[Kr] 4d10 5s2 5p2  
[Kr] 4d5 5s2  
Crystal Structure
Tetragonal (TETR)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
TETR-Crystal-Structure-of-Tin.jpg#100  
HCP-Crystal-Structure-of-Technetium.jpg#100  
Atom
  
  
Number of Protons
50  
99+
43  
99+
Number of Neutrons
69  
99+
55  
99+
Number of Electrons
50  
99+
43  
99+
Radius of an Atom
  
  
Atomic Radius
140.00 pm  
40
136.00 pm  
99+
Covalent Radius
139.00 pm  
99+
147.00 pm  
39
Van der Waals Radius
217.00 pm  
29
200.00 pm  
35
Atomic Weight
118.71 amu  
99+
98.00 amu  
99+
Atomic Volume
16.30 cm3/mol  
99+
8.50 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Indium
  
Molybdenum
  
Next Element
Cesium
  
Ruthenium
  
Valence Electron Potential
83.50 (-eV)  
14
180.00 (-eV)  
3
Lattice Constant
583.18 pm  
7
273.50 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
0.68  
99+
1.60  
21
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