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Beryllium
Beryllium

Iridium
Iridium



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Beryllium
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Iridium

Atomic Structure of Beryllium and Iridium

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Atomic

Atomic Number

477
3 117
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Electron Configuration

[He] 2s2
[Xe] 4f14 5d7 6s2

Crystal Structure

Hexagonal Close Packed (HCP)
Face Centered Cubic (FCC)

Crystal Lattice

Atom

Number of Protons

474
3 117
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Number of Neutrons

5110
4 285
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Number of Electrons

474
3 117
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Radius of an Atom

Atomic Radius

112.00 pm136.00 pm
0 348
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Covalent Radius

96.00 pm141.00 pm
0 260
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Van der Waals Radius

153.00 pm202.00 pm
0 348
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Atomic Weight

9.01 amu192.22 amu
6.94 294
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Atomic Volume

5.00 cm3/mol9.53 cm3/mol
1.39 71.07
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Adjacent Atomic Numbers

Previous Element

Next Element

Valence Electron Potential

82.00 (-eV)140.00 (-eV)
0 392.42
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Lattice Constant

228.58 pm383.90 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

1.571.58
0.423 1.9
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