×

Einsteinium
Einsteinium

Promethium
Promethium



ADD
Compare
X
Einsteinium
X
Promethium

Atomic Structure of Einsteinium and Promethium

Atomic

Atomic Number

9961
3 117
👆🏻

Electron Configuration

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

Crystal Structure

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

Crystal Lattice

Atom

Number of Protons

9961
3 117
👆🏻

Number of Neutrons

15384
4 285
👆🏻

Number of Electrons

9961
3 117
👆🏻

Radius of an Atom

Atomic Radius

186.00 pm183.00 pm
0 348
👆🏻

Covalent Radius

186.00 pm199.00 pm
0 260
👆🏻

Van der Waals Radius

0.00 pm236.00 pm
0 348
👆🏻

Atomic Weight

252.00 amu145.00 amu
6.94 294
👆🏻

Atomic Volume

17.04 cm3/mol22.39 cm3/mol
1.39 71.07
👆🏻

Adjacent Atomic Numbers

Previous Element

Next Element

Valence Electron Potential

0.00 (-eV)44.10 (-eV)
0 392.42
👆🏻

Lattice Constant

582.00 pm-
0 891.25
👆🏻

Lattice Angles

-
-

Lattice C/A Ratio

1.291.63
0.423 1.9
👆🏻