|
|
|
nanogram or nanogramme is equal to 10-9 gram (unit of mass), comes from a combination of the metric prefix nano (n) with the gram (g). Plural name is nanograms.
picogram or picogramme is equal to 10-12 gram (unit of mass), comes from a combination of the metric prefix pico (n) with the gram (g). Plural name is picograms.