Moscovium (Mc)
Unknown / predicted · p-block · period 7 · group 15
Never seen.
Moscovium (symbol Mc) is chemical element number 115, a unknown / predicted in group 15, period 7 of the periodic table. Its standard atomic weight is (290) and its electron configuration is [Rn] 5f14 6d10 7s2 7p3. Its state at room temperature is unknown, and it is radioactive. Named after the Moscow region, home of the Dubna laboratory.
Properties
| Atomic number | 115 |
|---|---|
| Atomic mass | (290) |
| Category | Unknown / predicted |
| Block | p-block |
| Group · Period | 15 · 7 |
| Electron configuration | [Rn] 5f14 6d10 7s2 7p3 |
| Electrons per shell | 2, 8, 18, 32, 32, 18, 5 |
| State at 25 °C | unknown |
| Melting point | — |
| Boiling point | — |
| Density | — |
| Electronegativity (Pauling) | — |
| Radioactive | Yes — no stable isotope |
| Origin | synthetic |
| Discovered | 2003 · Dubna / Livermore |
Key facts about Moscovium
- Named after the Moscow region, home of the Dubna laboratory.
- Made by firing calcium-48 ions at an americium target.
- Decays quickly into nihonium.
- Fewer than a hundred atoms have ever been made.
What Moscovium is used for
None — research only.
Where it sits in the periodic table
Moscovium is in group 15, period 7, of the p-block. Its electron configuration [Rn] 5f14 6d10 7s2 7p3 means its outermost shell holds 5 electrons, which is what places it here and explains much of its chemistry. See Moscovium on the interactive table →
Moscovium — frequently asked questions
What is Moscovium used for?
None — research only.
Is Moscovium radioactive?
Yes. Moscovium has no stable isotope, so every form of it is radioactive.
What is the electron configuration of Moscovium?
Moscovium has the electron configuration [Rn] 5f14 6d10 7s2 7p3, which is 2, 8, 18, 32, 32, 18, 5 electrons per shell.
What group and period is Moscovium in?
Moscovium is in group 15, period 7, in the p-block. Its outer shell holds 5 electrons.
Who discovered Moscovium?
Moscovium was discovered in 2003 by Dubna / Livermore.