electron
Virtually all of the mass of an atom is carried by the proton and the neutron. The electron has very, very little mass relative to these two particles.
An electron.
Proton is a positive particle and electron is a negative particle.
An atom is something that is very small, and is a particle of all types of matter. An electron is a negatively charged particle that surrounds the nucleus of an atom
The subatomic particles that contribute most almost no weight to an atom are electrons at various energy levels. Isotopes of the same element differ from each other only by the number of neutrons.
The electron.
electrons the smallest but weigh as much as protons neutrons weigh nothing ~Kay
Of course it is smaller. It is a sub atomic particle
The small, negatively-charged particle in an atom is an electron. However, this is not in the nucleus. The small negative particles in the nucleus are down quarks, which are smaller than protons and electrons. Strange quarks and bottom quarks are also negative, but are not found in the nucleus.
electron
A tiny particle is a very small piece of matter or substance, such as a molecule or atom. These particles are often smaller than can be seen with the naked eye and can be found in the air, water, or soil.
Neutrons are... very slightly... more massive than protons.