| Answer | Crossword Clue |
|---|---|
| NANOGRAM | One-trillionth of a kilo |
| GRAM | One thousandth of a kilo |
| picogram | one trillionth of a gram |
| picomole | one trillionth of a mole |
| picomole | one trillionth of a mole |
| picogram | one trillionth of a gram |
| PSEC | One 60-trillionth of a min. |
| picomoles | PICOMOLE, one trillionth of a mole |
| picograms | PICOGRAM, one trillionth of a gram |
