Question

what is the meaning of PM in chemistry measurement

Answer 1

The picometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: pm) or picometer (American spelling) is a unit of length in the metric system, equal to1×10−12 m, or one trillionth (11000000000000) of a metre, which is the SI base unit of length

Answer 2

HI MATE,

the meaning of PM in chemistry measurement is picometre.

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