Quarks - the smallest particles known in nature
Quarks are tiny, as small as 10 to 12 microns in diameter, equivalent to 10,000 to 12,000 nanometers
Quarks are so powerful that they make up almost anything large in nature
Quarks, electrons, or any other subatomic particles are just concentrated energies that are in no particular order, whereas elementary particles, such as quarks and electrons, are thought to be point-like. They have no dimension and are considered to be a dimensionless point in space.
A nanometer =10^-7 cm, a quark is less than 10^-16 cm, so the quark diameter is equal to 10^9 of a nanometer.