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Of the particles usually given as components of the atom... the electron, the neutron, and the proton... the electron is by far the lightest. If you want a simple answer, stop there; the rest of this gets nitpicky.
Under the standard model, the neutrons and protons are themselves composed of smaller particles called quarks (all of which are still more massive than electrons). However, since quarks have a color charge, they interact with each other through the color force, which is mediated by gauge particles called gluons.
There's also an electrical force between the charged particles, and the gauge particle for the electromagnetic force is the photon.
Both gluons and photons are massless, so they're tied for the title of "lightest particle".
(It's currently believed that if they exist gravitons must also be massless, making it a three-way tie. The fourth fundamental force... the weak nuclear force... is mediated by the very massive W and Z bosons, which aren't in the running.)
photon is one, it has zero mass. (0 eV) there are other zero mass bosons too.
neutrinos have small nonzero masses. (~1 eV)
electrons have significant mass. (0.511 MeV)
protons have larger mass. (938.2 MeV)
neutrons have slightly larger mass. (939.5 MeV)
The lightest particle of an atom is the electron. It has a much smaller mass compared to the protons and neutrons found in the nucleus of an atom.
The lightest subatomic particle is the electron. It has a mass that is vastly smaller than that of protons and neutrons.
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What subatomic particle Has the smallest relative mass?
In the atom the electron is the lightest.
What subatomic particle has the less mass?
The electron is the subatomic particle with the least mass. It has a mass of about 1/1836 of a proton or neutron.
Which atom is the lightest?
The lightest atom is hydrogen. It consists of a single proton and an electron, making it the simplest and lightest element on the periodic table.
What subatomic particle is heaviest?
The heaviest subatomic particle is the top quark, which has a mass of about 173 GeV/cĀ². It is more than 35,000 times heavier than the lightest known particle, the electron.
Is the Higgs boson on the periodic table?
No. The periodic table contains the elements, which are made of atoms. The Higgs boson is a much smaller particle than an atom. Yes, but it was a theoretical element until recently when its presence was proved. The Higgs Boson is a subatomic particle that apparently weighs 130 times as much as an atom of hydrogen, the lightest gas.
What subatomic particles are the lightweights of the atom?
The lightest particle in the atom is the electron.
What subatomic particle Has the smallest relative mass?
In the atom the electron is the lightest.
What is the lightest subatomic particle of an atom?
The lightest subatomic particle of an atom is the electron. It has a very small mass compared to protons and neutrons, making it a key component in determining the chemical properties of an atom.
What is a subatomic particles with almost no mass?
The electron is the lightest particle in the atom.
Which of the subatomic particle is the lightest?
Electron, lightest stable subatomic particle known. It carries a negative charge, which is considered the basic unit of electric charge. The rest mass of the electron is 9.109 × 10−31 kg, which is only 1/1,840the mass of a proton. An electron is therefore considered nearly massless in comparison with a proton or a neutron, and the electron mass is not included in calculating the mass number of an atom.
What subatomic particle has the less mass?
The electron is the subatomic particle with the least mass. It has a mass of about 1/1836 of a proton or neutron.
Which atom is the lightest?
The lightest atom is hydrogen. It consists of a single proton and an electron, making it the simplest and lightest element on the periodic table.
What is the symbol for the lightest atom?
The lightest atom is hydrogen, and its symbol is H.
What is the light est subatomic particle?
The lightest subatomic particle is the electron.
What atom is the lightest and the simplest atom?
hydrogen
What particle in the atom is the least massive?
Electrons are the least massive particles in an atom. They have a mass that is about 1/1836th the mass of a proton or neutron.
Which is the lightest component of an atom?
electrons
