Technetium

Curium

Atomic Structure of Technetium and Curium

Technetium

Curium

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Atomic

Atomic Number

4396

3 117

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Electron Configuration

[Kr] 4d⁵ 5s²

[Rn] 5f⁷ 6d¹ 7s²

Crystal Structure

Hexagonal Close Packed (HCP)

Double Hexagonal Close Packed (DHCP)

Crystal Lattice

Atom

Number of Protons

4396

3 117

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Number of Neutrons

55151

4 285

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Number of Electrons

4396

3 117

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Radius of an Atom

Atomic Radius

136.00 pm174.00 pm

0 348

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Covalent Radius

147.00 pm169.00 pm

0 260

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Van der Waals Radius

200.00 pm200.00 pm

0 348

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Atomic Weight

98.00 amu247.00 amu

6.94 294

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Atomic Volume

8.50 cm3/mol18.28 cm3/mol

1.39 71.07

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Adjacent Atomic Numbers

Previous Element

Next Element

Valence Electron Potential

180.00 (-eV)44.50 (-eV)

0 392.42

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Lattice Constant

273.50 pm336.25 pm

0 891.25

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Lattice Angles

π/2, π/2, 2 π/3

Lattice C/A Ratio

1.601.67

0.423 1.9

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