electron number density unit: m3

https://doi.org/10.1351/goldbook.08470
Number of free electrons in vapour phase per volume unit.
Note:
SI unit: m3.
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 717 [Terms] [Paper]