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Technetium
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Beryllium
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Technetium
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Beryllium
Atomic Structure of Technetium and Beryllium
Technetium
Beryllium
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Summary
Periodic Table
Facts
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Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
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Atomic
Atomic Number
43
4
3
117
👆🏻
Electron Configuration
[Kr] 4d
5
5s
2
[He] 2s
2
Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
Crystal Lattice
Atom
Number of Protons
43
4
3
117
👆🏻
Number of Neutrons
55
5
4
285
👆🏻
Number of Electrons
43
4
3
117
👆🏻
Radius of an Atom
Atomic Radius
136.00 pm
112.00 pm
0
348
👆🏻
Covalent Radius
147.00 pm
96.00 pm
0
260
👆🏻
Van der Waals Radius
200.00 pm
153.00 pm
0
348
👆🏻
Atomic Weight
98.00 amu
9.01 amu
6.94
294
👆🏻
Atomic Volume
8.50 cm3/mol
5.00 cm3/mol
1.39
71.07
👆🏻
Adjacent Atomic Numbers
Previous Element
Next Element
Valence Electron Potential
180.00 (-eV)
82.00 (-eV)
0
392.42
👆🏻
Lattice Constant
273.50 pm
228.58 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
1.57
0.423
1.9
👆🏻
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