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Promethium
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Technetium
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Actinide Series
Lanthanide Series
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Promethium
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Technetium
Atomic Structure of Promethium and Technetium
Promethium
Technetium
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Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
All
Atomic
Atomic Number
61
43
3
117
👆🏻
Electron Configuration
[Xe] 4f
5
6s
2
[Kr] 4d
5
5s
2
Crystal Structure
Double Hexagonal Close Packed (DHCP)
Hexagonal Close Packed (HCP)
Crystal Lattice
Atom
Number of Protons
61
43
3
117
👆🏻
Number of Neutrons
84
55
4
285
👆🏻
Number of Electrons
61
43
3
117
👆🏻
Radius of an Atom
Atomic Radius
183.00 pm
136.00 pm
0
348
👆🏻
Covalent Radius
199.00 pm
147.00 pm
0
260
👆🏻
Van der Waals Radius
236.00 pm
200.00 pm
0
348
👆🏻
Atomic Weight
145.00 amu
98.00 amu
6.94
294
👆🏻
Atomic Volume
22.39 cm3/mol
8.50 cm3/mol
1.39
71.07
👆🏻
Adjacent Atomic Numbers
Previous Element
Next Element
Valence Electron Potential
44.10 (-eV)
180.00 (-eV)
0
392.42
👆🏻
Lattice Constant
-
273.50 pm
0
891.25
👆🏻
Lattice Angles
-
π/2, π/2, 2 π/3
Lattice C/A Ratio
1.63
1.60
0.423
1.9
👆🏻
Compare Lanthanide Series
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Promethium vs Holmium
Promethium vs Lutetium
Promethium vs Praseodymium
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Lanthanide Series
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Thulium
Ytterbium
Terbium
Dysprosium
Holmium
Lutetium
» More Lanthanide Series
Lanthanide Series
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Praseodymium
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Compare Lanthanide Series
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Technetium vs Ytterbium
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Technetium vs Terbium
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Technetium vs Dysprosium
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Uses
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Physical