Lanthanum

Copper

Atomic Structure of Lanthanum and Copper

Lanthanum

Copper

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Atomic

Atomic Number

5729

3 117

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Electron Configuration

[Xe] 5d² 6s²

[Ar] 3d¹⁰ 4s¹

Crystal Structure

Double Hexagonal Close Packed (DHCP)

Face Centered Cubic (FCC)

Crystal Lattice

Atom

Number of Protons

5729

3 117

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Number of Neutrons

8235

4 285

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Number of Electrons

5729

3 117

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Radius of an Atom

Atomic Radius

187.00 pm128.00 pm

0 348

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Covalent Radius

207.00 pm132.00 pm

0 260

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Van der Waals Radius

240.00 pm140.00 pm

0 348

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Atomic Weight

138.91 amu63.55 amu

6.94 294

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Atomic Volume

20.73 cm3/mol7.10 cm3/mol

1.39 71.07

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Adjacent Atomic Numbers

Previous Element

Next Element

Valence Electron Potential

40.71 (-eV)34.00 (-eV)

0 392.42

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Lattice Constant

377.20 pm361.49 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

1.621.28

0.423 1.9

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