This particle is the electron.
This is a difficult question because size doesn't really apply to particle physics, even less when one considers particle-wave dualities. Of all the particles that can be considered as "matter", muon neutrinos (νμ) are currently understood as the lightest, with a mass of about 170 keV, or around 3.311 x 10-31 kilograms.
On the other hand, forces are also carried by (non-matter) particles, photons (mediate the electromagnetic force) and gluons (mediate the strong nuclear force) are both known to have zero mass.
observable ? i'd say quarks.
The more particle is given the less water would go through it leaving the particle wet
viruses are the smallest pathogens
roc is the smallest
the smallest adult is dwarfs.
A quark is the smallest particle in matter.
An atom is the smallest particle of a substance.
The smallest particle of an element is called an atom.
The atom is the smallest known particle.
The smallest particle in the atom is the electron.
Atoms are NOT the smallest particle- they are the smallest COMPLETE particle. In an atomic reaction, the atoms are broken apart, and release energy.
A molecule is the smallest particle of a compound that still retains its properties. An atom is the smallest particle of an element that still retains its properties.
A Higgs-Boson particle.
An atom is a particle, the smallest particle that can exist by itself.
subatomic particle
This particle is called atom.
Hydrogen has the smallest atomic mass at roughly 1.008 grams per mol (6.02x10^23 atoms)