Energy level (n) — Science definition
A principal shell around the nucleus; higher n means higher energy and, on average, greater distance from the nucleus.
Where it is taught
- Electron Configuration — Atoms, Electrons & Periodicity, Physical Science: Chemistry, Grade 11
Taught alongside
- sublevel
- orbital
- electron configuration
- Aufbau principle
- Pauli exclusion principle
- Hund's rule
- valence electrons