spectral notation

Alternative definitions (0), class: vernacular (0)
Term: spectral notation
Definition:

By convention spectral analysts designate the level of ionization with a roman numeral that is one unit larger that the actual number of missing electrons. For example HeII is singly ionized Helium (one electron missing).

Created 2023.04.16
Last Modified 2023.04.16
Contributed by Ryan McGranaghan
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