Electron Configuration of Moscovium (Mc)
Moscovium (Mc, Z = 115) has the electron configuration [Rn] 5f^14 6d^10 7s^2 7p^3, filling 7 shells with 2, 8, 18, 32, 32, 18, 5 electrons.
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Moscovium: every subshell, one by one
The table below unpacks [Rn] 5f^14 6d^10 7s^2 7p^3 line by line, so you can watch Moscovium's 115 electrons take their seats in order of increasing energy.
| Subshell | Electrons | Total so far |
|---|---|---|
| [Rn] | 0 | 86 |
| 5f | 14 | 100 |
| 6d | 10 | 110 |
| 7s | 2 | 112 |
| 7p | 3 | 115 |
Electrons per shell (K, L, M…)
Grouped by principal quantum number instead of subshell, Moscovium carries 2 in shell 1, 8 in shell 2, 18 in shell 3, 32 in shell 4, 32 in shell 5, 18 in shell 6, 5 in shell 7. The outermost shell holds 5 electrons — the ones that do all the bonding.
How to derive it yourself
Follow the aufbau order (1s → 2s → 2p → 3s → 3p → 4s → 3d → …), pouring 115 electrons into orbitals of capacity 2 (s), 6 (p), 10 (d) and 14 (f) until none remain. Write the filled inner shells as the nearest noble-gas core — for Moscovium that gives [Rn] 5f^14 6d^10 7s^2 7p^3.
Students also ask
How many electron shells does Moscovium have?
Moscovium is in period 7, so its electrons occupy 7 shells, holding 2, 8, 18, 32, 32, 18, 5 electrons respectively.
How many valence electrons does Moscovium have?
Its outermost shell holds 5 electrons, so Moscovium has 5 valence electrons that take part in bonding.
What is the noble-gas shorthand for Moscovium?
The shorthand form is exactly [Rn] 5f^14 6d^10 7s^2 7p^3.