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(1 pm= 10-12m] ." |
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Answer» Picometre (Unit of length) The picometre or picometer is a unit of length in the metric system, equal to 1×10−12 m, or one trillionth of a metre, which is the SI base unit of length. The picometre is one thousandth of a nanometre, one millionth of a micrometre, and used to be called micromicron, stigma, or bicron. |
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