The Spectroscope

Point the brass at an element: choose its symbol below and its light passes through a prism. Each bright line is a wavelength the neutral atom emits strongly. Mix two elements and see whose lines are whose. Hover the spectrum to read the wavelength.

prism view show lines outside 380–750 nm as markers

LIT every line here is from the NIST Handbook of Basic Atomic Spectroscopic Data (strong neutral-atom lines, air wavelengths), as verified for the element spheres; elements without a verified line are not offered. ANALOGY line widths, brightness and colours are drawn for the eye: the colour of a wavelength is an approximation, and lines outside the visible band are shown as grey markers. Self-check: every line is a positive wavelength, each element has at least one, and the page counts what it draws. element spheres · ← SaPpH{{i}}on