The orbital names s, p, d, and f stand for names given to groups of lines originally noted in the spectra of the alkali metals. These line groups are called sharp, principal, diffuse, and fundamental.

What does the SPDF stand for?

The spdf stands for sharp, principal, diffuse, and fundamental respectively. These letters are used as the visual impression to describe the fine structure of the spectral lines that occurs due to the spin orbital interaction.

What is meant by SPDF in chemistry?

From Wikipedia, the free encyclopedia. Spdf or SPDF may refer to: Electron configuration, for which there is an obsolete system of categorizing spectral lines as "sharp", "principal", "diffuse" and "fundamental"; also the names of the sub shells or orbitals. The blocks of the periodic table.