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Lanthanum
Lanthanum




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Atomic Structure of Lanthanum

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1 Atomic

1.1 Atomic Number

57
Rank: 59 (Overall)
3 117

1.2 Electron Configuration

[Xe] 5d2 6s2

1.3 Crystal Structure

Double Hexagonal Close Packed (DHCP)

1.3.1 Crystal Lattice

1.4 Atom

1.4.1 Number of Protons

57
Rank: 58 (Overall)
3 117

1.4.2 Number of Neutrons

82
Rank: 41 (Overall)
4 184

1.4.3 Number of Electrons

57
Rank: 58 (Overall)
3 117

1.5 Radius of an Atom

1.5.1 Atomic Radius

187.00 pm
Rank: 8 (Overall)
112 265

1.5.2 Covalent Radius

207.00 pm
Rank: 6 (Overall)
96 260

1.5.3 Van der Waals Radius

240.00 pm
Rank: 13 (Overall)
139 348

1.6 Atomic Weight

138.91 amu
Rank: 53 (Overall)
6.94 294

1.7 Atomic Volume

20.73 cm3/mol
Rank: 16 (Overall)
1.39 71.07

1.8 Adjacent Atomic Numbers

1.8.1 Previous Element

1.8.2 Next Element

1.9 Valence Electron Potential

40.71 (-eV)
Rank: 46 (Overall)
8 392.42

1.10 Lattice Constant

377.20 pm
Rank: 28 (Overall)
228.58 891.25

1.11 Lattice Angles

π/2, π/2, 2 π/3

1.12 Lattice C/A Ratio

1.62
Rank: 2 (Overall)
1.567 1.886