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Sodium
Sodium

Samarium
Samarium



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Sodium
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Samarium

Atomic Structure of Sodium and Samarium

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Atomic

Atomic Number

1162
3 117
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Electron Configuration

[Ne] 3s1
[Xe] 4f6 6s2

Crystal Structure

Body Centered Cubic (BCC)
Rhombohedral (RHO)

Crystal Lattice

Atom

Number of Protons

1162
3 117
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Number of Neutrons

1288
4 285
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Number of Electrons

1162
3 117
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Radius of an Atom

Atomic Radius

186.00 pm180.00 pm
0 348
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Covalent Radius

166.00 pm198.00 pm
0 260
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Van der Waals Radius

227.00 pm229.00 pm
0 348
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Atomic Weight

22.99 amu150.36 amu
6.94 294
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Atomic Volume

23.70 cm3/mol19.95 cm3/mol
1.39 71.07
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Adjacent Atomic Numbers

Previous Element

Next Element

Valence Electron Potential

14.10 (-eV)44.80 (-eV)
0 392.42
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Lattice Constant

429.06 pm362.10 pm
0 891.25
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Lattice Angles

π/2, π/2, π/2
π/2, π/2, 2 π/3

Lattice C/A Ratio

1.011.62
0.423 1.9
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