Technetium

Sodium

Atomic Structure of Technetium and Sodium

Technetium

Sodium

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Atomic

Atomic Number

4311

3 117

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Electron Configuration

[Kr] 4d⁵ 5s²

[Ne] 3s¹

Crystal Structure

Hexagonal Close Packed (HCP)

Body Centered Cubic (BCC)

Crystal Lattice

Atom

Number of Protons

4311

3 117

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Number of Neutrons

5512

4 285

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Number of Electrons

4311

3 117

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Radius of an Atom

Atomic Radius

136.00 pm186.00 pm

0 348

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Covalent Radius

147.00 pm166.00 pm

0 260

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Van der Waals Radius

200.00 pm227.00 pm

0 348

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Atomic Weight

98.00 amu22.99 amu

6.94 294

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Atomic Volume

8.50 cm3/mol23.70 cm3/mol

1.39 71.07

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Adjacent Atomic Numbers

Previous Element

Next Element

Valence Electron Potential

180.00 (-eV)14.10 (-eV)

0 392.42

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Lattice Constant

273.50 pm429.06 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

1.601.01

0.423 1.9

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