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Technetium
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Technetium
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Gallium
Atomic Structure of Technetium and Gallium
Technetium
Gallium
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Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
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Atomic
Atomic Number
43
31
3
117
👆🏻
Electron Configuration
[Kr] 4d
5
5s
2
[Ar] 3d
10
4s
2
4p
1
Crystal Structure
Hexagonal Close Packed (HCP)
Orthorhombic (ORTH)
Crystal Lattice
Atom
Number of Protons
43
31
3
117
👆🏻
Number of Neutrons
55
39
4
285
👆🏻
Number of Electrons
43
31
3
117
👆🏻
Radius of an Atom
Atomic Radius
136.00 pm
135.00 pm
0
348
👆🏻
Covalent Radius
147.00 pm
122.00 pm
0
260
👆🏻
Van der Waals Radius
200.00 pm
187.00 pm
0
348
👆🏻
Atomic Weight
98.00 amu
69.72 amu
6.94
294
👆🏻
Atomic Volume
8.50 cm3/mol
11.80 cm3/mol
1.39
71.07
👆🏻
Adjacent Atomic Numbers
Previous Element
Next Element
Valence Electron Potential
180.00 (-eV)
69.70 (-eV)
0
392.42
👆🏻
Lattice Constant
273.50 pm
451.97 pm
0
891.25
👆🏻
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Lattice C/A Ratio
1.60
1.30
0.423
1.9
👆🏻
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