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Thulium
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Transition Metals
Actinide Series
Lanthanide Series
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Alkaline Earth Metals
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Thulium
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Fermium
Atomic Structure of Thulium and Fermium
Thulium
Fermium
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Summary
Periodic Table
Facts
Uses
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Chemical
Atomic
Mechanical
Magnetic
Thermal
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Atomic
Atomic Number
69
100
3
117
👆🏻
Electron Configuration
[Xe] 4f
13
6s
2
[Rn] 5f
12
7s
2
Crystal Structure
Hexagonal Close Packed (HCP)
Not Known
Crystal Lattice
Atom
Number of Protons
69
100
3
117
👆🏻
Number of Neutrons
100
157
4
285
👆🏻
Number of Electrons
69
100
3
117
👆🏻
Radius of an Atom
Atomic Radius
176.00 pm
180.00 pm
0
348
👆🏻
Covalent Radius
160.00 pm
180.00 pm
0
260
👆🏻
Van der Waals Radius
227.00 pm
245.00 pm
0
348
👆🏻
Atomic Weight
168.93 amu
257.00 amu
6.94
294
👆🏻
Atomic Volume
18.10 cm3/mol
18.00 cm3/mol
1.39
71.07
👆🏻
Adjacent Atomic Numbers
Previous Element
Next Element
Valence Electron Potential
49.70 (-eV)
0.00 (-eV)
0
392.42
👆🏻
Lattice Constant
353.75 pm
350.00 pm
0
891.25
👆🏻
Lattice Angles
π/2, π/2, 2 π/3
-
Lattice C/A Ratio
1.57
1.63
0.423
1.9
👆🏻
Compare Lanthanide Series
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Thulium vs Lutetium
Thulium vs Praseodymium
Thulium vs Promethium
» More Compare Lanthanide Series
Lanthanide Series
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Ytterbium
Terbium
Dysprosium
Holmium
Lutetium
Praseodymium
» More Lanthanide Series
Lanthanide Series
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Promethium
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Uses
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Europium
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Lanthanum
Periodic ...
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Physical
Compare Lanthanide Series
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Fermium vs Terbium
Periodic ...
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Physical
Fermium vs Dysprosium
Periodic ...
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Uses
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Physical
Fermium vs Holmium
Periodic ...
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Facts
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Uses
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Physical