Picometer is an SI measure of length that is equal to 10^{12} of a meter. Its abbreviation is pm and is commonly used in measuring atomicscale distances. Atom diameters are in the range from 50 to 600 pm.
1 pm = 1 x 10^{12} meter
100 pm = 1 ångström
1000 pm = 1 nanometer
See also:
1 x 10^{12} meter
Conversion Calculator for Units of LENGTH (http://www.ex.ac.uk/cimt/dictunit/ccleng.htm)
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