Calcium

Thulium

Atomic Structure of Calcium and Thulium

Calcium

Thulium

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Atomic

Atomic Number

2069

3 117

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Electron Configuration

[Ar] 4s²

[Xe] 4f¹³ 6s²

Crystal Structure

Face Centered Cubic (FCC)

Hexagonal Close Packed (HCP)

Crystal Lattice

Atom

Number of Protons

2069

3 117

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Number of Neutrons

20100

4 285

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Number of Electrons

2069

3 117

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Radius of an Atom

Atomic Radius

197.00 pm176.00 pm

0 348

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Covalent Radius

176.00 pm160.00 pm

0 260

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Van der Waals Radius

231.00 pm227.00 pm

0 348

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Atomic Weight

40.08 amu168.93 amu

6.94 294

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Atomic Volume

29.90 cm3/mol18.10 cm3/mol

1.39 71.07

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Adjacent Atomic Numbers

Previous Element

Next Element

Valence Electron Potential

29.00 (-eV)49.70 (-eV)

0 392.42

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Lattice Constant

558.84 pm353.75 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

1.551.57

0.423 1.9

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