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Calcium
Calcium

Rubidium
Rubidium



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Calcium
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Rubidium

Atomic Structure of Calcium and Rubidium

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Atomic

Atomic Number

2037
3 117
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Electron Configuration

[Ar] 4s2
[Kr] 5s1

Crystal Structure

Face Centered Cubic (FCC)
Body Centered Cubic (BCC)

Crystal Lattice

Atom

Number of Protons

2037
3 117
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Number of Neutrons

2048
4 285
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Number of Electrons

2037
3 117
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Radius of an Atom

Atomic Radius

197.00 pm248.00 pm
0 348
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Covalent Radius

176.00 pm220.00 pm
0 260
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Van der Waals Radius

231.00 pm303.00 pm
0 348
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Atomic Weight

40.08 amu85.47 amu
6.94 294
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Atomic Volume

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

Previous Element

Next Element

Valence Electron Potential

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

558.84 pm558.50 pm
0 891.25
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Lattice Angles

π/2, π/2, π/2
π/2, π/2, π/2

Lattice C/A Ratio

1.551.59
0.423 1.9
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