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Promethium
Promethium

Einsteinium
Einsteinium



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Promethium
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Einsteinium

Atomic Structure of Promethium and Einsteinium

Atomic

Atomic Number

6199
3 117
👆🏻

Electron Configuration

[Xe] 4f5 6s2
[Rn] 5f11 7s2

Crystal Structure

Double Hexagonal Close Packed (DHCP)
Face Centered Cubic (FCC)

Crystal Lattice

Atom

Number of Protons

6199
3 117
👆🏻

Number of Neutrons

84153
4 285
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Number of Electrons

6199
3 117
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Radius of an Atom

Atomic Radius

183.00 pm186.00 pm
0 348
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Covalent Radius

199.00 pm186.00 pm
0 260
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Van der Waals Radius

236.00 pm0.00 pm
0 348
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Atomic Weight

145.00 amu252.00 amu
6.94 294
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Atomic Volume

22.39 cm3/mol17.04 cm3/mol
1.39 71.07
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Adjacent Atomic Numbers

Previous Element

Next Element

Valence Electron Potential

44.10 (-eV)0.00 (-eV)
0 392.42
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Lattice Constant

-582.00 pm
0 891.25
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Lattice Angles

-
-

Lattice C/A Ratio

1.631.29
0.423 1.9
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