Oh, dude, pictometers are basically just a unit of measurement in the metric system. They're like super tiny, like even smaller than a nanometer. So, if you ever need to measure something really, really small, you can whip out the pictometers and impress all your science friends.
1 picometer = 1 pm = 10-9 mm
The basic unit of matter is the atom.Every material object, or substance that can be touched and felt, is made up of atoms. Everything that is solid, liquid, or gas is made up of atoms. An atom's size is measured in pictometers (trillionths of a meter).