charge number, \(n\), \(\nu _{\text{e}}\), \(z\)

of a cell reaction
https://doi.org/10.1351/goldbook.C00995
Number of electrons transferred according to the cell reaction equation.
Source:
Green Book, 2nd ed., p. 58 (https://dev.goldbook.iupac.org/files/pdf/green_book_2ed.pdf)