electric charge, \(Q\)

https://doi.org/10.1351/goldbook.E01923
Integral of the electric current over time. The smallest electric charge found on its own is the elementary charge, \(e\), the charge of a proton.
Sources:
Green Book, 2nd ed., p. 14 [Terms] [Book]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 970 [Terms] [Paper]