Moscovium (Mc)

Unknown

Moscovium is a superheavy element named after Moscow Oblast, where it was first synthesized, and with [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p³, moscovium (half-life 0.65 seconds for Mc-290) has a half-filled 7p shell. It is expected to be more metallic than bismuth but only about 16 atoms have been produced.

Key metrics

Density13.5g/cm³predicted

Melting point670Kpredicted

Boiling point1,400Kpredicted

Electronegativity2.1Paulingpredicted

Discovery

2003discovered

Discovered by: Joint Institute for Nuclear Research
Reactivity profile: Highly radioactive
Reactivity: Medium
Bonding: Metallic

Electron configuration

\textcolor{#6b7280}{[Rn]}\; \textcolor{#a855f7}{5_{f}^{14}}\; \textcolor{#22c55e}{6_{d}^{10}}\; \textcolor{#ef4444}{7_{s}^{2}}\; \textcolor{#3b82f6}{7_{p}^{3}}

[Rn] 5f14 6d10 7s2 7p3

Wave function

\Psi_{\text{Mc}} \approx \frac{1}{\sqrt{115!}} \det \left| \chi_1(\mathbf{r}_1) \dots \chi_{115}(\mathbf{r}_{115}) \right|

Probability density $|\Psi|^2$ across the Mc valence shell.

Crystal structure

Face-Centered Cubic

Lattice constantsa = 1.00

Cell anglesα = β = γ = 90°

Coordination number12

Atoms per cell4

Atomic packing factor0.74

Physical properties

Atomic radius: 162 pmpredicted
Ionization energy: 850 kJ/molpredicted
Electron affinity: 0 kJ/molpredicted
Crystal structure: Face-centered cubic (predicted)

Oxidation statespredicted

+1+3

Acid/base

Basic

Strongly acidicStrongly basic

State at 25 °CSolid

670 K1400 K298 K

predicted