A prefix meaning one-trillionth (1/1,000,000,000,000 or 10

Example: a picometer is one-trillionth of a meter (in other words, a trillion picometers make 1 meter)

The diameter of a helium atom is about 100 picometers

Symbol is

Example: 12 pL = 12 picoliters = 12 trillionths of a liter (0.000000000012 L)

^{-12})Example: a picometer is one-trillionth of a meter (in other words, a trillion picometers make 1 meter)

The diameter of a helium atom is about 100 picometers

Symbol is

**p**Example: 12 pL = 12 picoliters = 12 trillionths of a liter (0.000000000012 L)

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