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Moscovium

Element 115 · Post-transition metal

Specimen

Atomic number
115
Atomic mass
[290]
State at room temperature
Unknown
Melting point
Unknown
Boiling point
Unknown
Density
Unknown
Discovered
2003

Mass number of the longest-lived isotope, from IUPAC.1 Other physical data from PubChem.2

Can I eat it?

In food and water
Never made in amounts you could eat. About 100 atoms of moscovium have been made. 3

See every element.

The atom

Mc
ShellElectrons
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 32
6 (P) 18
7 (Q) outermost 5
Total115

Configuration [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p³

5f ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓
6d ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓
7s ↑ ↓
7p ↑ ↑ ↑
A shell diagram: each ring is an electron shell and each dot is one electron. The nucleus holds 115 protons. The outermost shell is shown in red. Electrons do not travel on rings: they fill orbitals, regions where an electron is likely to be found. The boxes are those orbitals for the electrons outside the Rn core, with one arrow per electron. This configuration is a prediction; it has not been measured.

Related elements

Group 15
N Nitrogen P Phosphorus As Arsenic Sb Antimony Bi Bismuth

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Sources

  1. 1

    IUPAC Commission on Isotopic Abundances and Atomic Weights (CIAAW), 2024. Radioactive Elements .

    Mass number and half-life of the longest-lived isotope of the 34 elements with no standard atomic weight.

  2. 2

    National Center for Biotechnology Information (PubChem), 2026. Periodic Table of Elements .

    Electron configuration, melting and boiling points, density and discovery year for all 118 elements.

  3. 3

    Los Alamos National Laboratory, Periodic Table of Elements, 2026. Moscovium .

    • So far, only about 100 atoms of moscovium have been produced, so no chemical properties have been confirmed.