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Gadolinium
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Thulium
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Gadolinium
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Thulium
Atomic Structure of Gadolinium and Thulium
Gadolinium
Thulium
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Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
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Atomic
Atomic Number
64
69
3
117
👆🏻
Electron Configuration
[Xe] 4f
7
5d
1
6s
2
[Xe] 4f
13
6s
2
Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
Crystal Lattice
Atom
Number of Protons
64
69
3
117
👆🏻
Number of Neutrons
93
100
4
285
👆🏻
Number of Electrons
64
69
3
117
👆🏻
Radius of an Atom
Atomic Radius
180.00 pm
176.00 pm
0
348
👆🏻
Covalent Radius
196.00 pm
160.00 pm
0
260
👆🏻
Van der Waals Radius
237.00 pm
227.00 pm
0
348
👆🏻
Atomic Weight
47.87 amu
168.93 amu
6.94
294
👆🏻
Atomic Volume
19.90 cm3/mol
18.10 cm3/mol
1.39
71.07
👆🏻
Adjacent Atomic Numbers
Previous Element
Next Element
Valence Electron Potential
46.10 (-eV)
49.70 (-eV)
0
392.42
👆🏻
Lattice Constant
363.60 pm
353.75 pm
0
891.25
👆🏻
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
Lattice C/A Ratio
1.59
1.57
0.423
1.9
👆🏻
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