Series Lines Share the Ground Level - Atomic Spectra: Energy Levels and Line Series Step by Step

A finite line series is a source-bound shared-anchor list. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

A line series shares one anchor level

This finite series uses ground as the shared anchor and has 3 checked transitions.

anchor=\mathrm{ground},\quad count=3

The listed gaps come from the source transitions

The three gaps are 4, 9, and 15 joules.

\Delta E=4,\ 9,\ 15\ \mathrm{J}