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Lanthanum
Lanthanum

Rubidium
Rubidium



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Lanthanum
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Rubidium

Atomic Structure of Lanthanum and Rubidium

Atomic

Atomic Number

5737
3 117
👆🏻

Electron Configuration

[Xe] 5d2 6s2
[Kr] 5s1

Crystal Structure

Double Hexagonal Close Packed (DHCP)
Body Centered Cubic (BCC)

Crystal Lattice

Atom

Number of Protons

5737
3 117
👆🏻

Number of Neutrons

8248
4 285
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Number of Electrons

5737
3 117
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Radius of an Atom

Atomic Radius

187.00 pm248.00 pm
0 348
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Covalent Radius

207.00 pm220.00 pm
0 260
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Van der Waals Radius

240.00 pm303.00 pm
0 348
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Atomic Weight

138.91 amu85.47 amu
6.94 294
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Atomic Volume

20.73 cm3/mol55.90 cm3/mol
1.39 71.07
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Adjacent Atomic Numbers

Previous Element

Next Element

Valence Electron Potential

40.71 (-eV)9.47 (-eV)
0 392.42
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Lattice Constant

377.20 pm558.50 pm
0 891.25
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Lattice Angles

π/2, π/2, 2 π/3
π/2, π/2, π/2

Lattice C/A Ratio

1.621.59
0.423 1.9
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