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Atomic Structure of Potassium and Technetium

Potassium
Technetium
Atomic Structure of Technetium and Potassium


Atomic
Atomic Number
19  
99+
43  
99+
Electron Configuration
[Ar] 4s1  
[Kr] 4d5 5s2  
Crystal Structure
Body Centered Cubic (BCC)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
HCP-Crystal-Structure-of-Technetium.jpg#100  
Atom
  
  
Number of Protons
19  
99+
43  
99+
Number of Neutrons
20  
99+
55  
99+
Number of Electrons
19  
99+
43  
99+
Radius of an Atom
  
  
Atomic Radius
227.00 pm  
4
136.00 pm  
99+
Covalent Radius
203.00 pm  
9
147.00 pm  
39
Van der Waals Radius
275.00 pm  
7
200.00 pm  
35
Atomic Weight
39.10 amu  
99+
98.00 amu  
99+
Atomic Volume
45.46 cm3/mol  
4
8.50 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Aluminium
  
Molybdenum
  
Next Element
Calcium
  
Ruthenium
  
Valence Electron Potential
10.40 (-eV)  
99+
180.00 (-eV)  
3
Lattice Constant
532.80 pm  
13
273.50 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.69  
10
1.60  
21
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