|
|
|
Femtogram or femtogramme is equal to 10-15 gram (unit of mass), comes from a combination of the metric prefix femto (f) with the gram (g). Plural name is femtograms.
Yottagram or yottagramme is equal to 1024 gram (unit of mass), comes from a combination of the metric prefix yotta (Y) with the gram (g). Plural name is yottagrams.