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Lanthanum
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Actinide Series
Lanthanide Series
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Atomic Structure of Lanthanum
Lanthanum
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Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
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Atomic
Atomic Number
57
Rank: 59 (Overall)
3
117
👆🏻
Electron Configuration
[Xe] 5d
2
6s
2
Crystal Structure
Double Hexagonal Close Packed (DHCP)
Crystal Lattice
Atom
Number of Protons
57
Rank: 58 (Overall)
3
117
👆🏻
Number of Neutrons
82
Rank: 42 (Overall)
4
285
👆🏻
Number of Electrons
57
Rank: 58 (Overall)
3
117
👆🏻
Radius of an Atom
Atomic Radius
187.00 pm
Rank: 10 (Overall)
0
348
👆🏻
Covalent Radius
207.00 pm
Rank: 6 (Overall)
0
260
👆🏻
Van der Waals Radius
240.00 pm
Rank: 17 (Overall)
0
348
👆🏻
Atomic Weight
138.91 amu
Rank: 53 (Overall)
6.94
294
👆🏻
Atomic Volume
20.73 cm3/mol
Rank: 26 (Overall)
1.39
71.07
👆🏻
Adjacent Atomic Numbers
Previous Element
Next Element
Valence Electron Potential
40.71 (-eV)
Rank: 47 (Overall)
0
392.42
👆🏻
Lattice Constant
377.20 pm
Rank: 31 (Overall)
0
891.25
👆🏻
Lattice Angles
π/2, π/2, 2 π/3
Lattice C/A Ratio
1.62
Rank: 16 (Overall)
0.423
1.9
👆🏻
Lanthanide Series
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Europium
Promethium
Thulium
Ytterbium
Terbium
Dysprosium
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Europium vs Terbium
Europium vs Dysprosium
Europium vs Holmium
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Lanthanide Series
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Holmium
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Lutetium
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Physical
Praseodymium
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Physical
Compare Lanthanide Series
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Promethium vs Europium
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Physical
Thulium vs Europium
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Physical
Ytterbium vs Europium
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Physical