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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.
In the atom the lightest is the electron.
With a mass of zero, the photon, gluon, and graviton are the lightest subatomic particles.
If you mean "atom" than the electron. But if you mean smallest of all its the quark.
The smallest parts of an atom are quarks.
However the smallest part out of Electrons, Protons and Neutrons are Electrons
Of the protons, electrons, and neutrons, the neutrons are most massive and the electrons are least massive.
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What particle is least massive?
The least massive principle atomic particle is the electron. Neutrons and protons are much more massive and are about equal in mass. Of course, there are even smaller particles such as quarks which are less massive than even electrons.
Fundamental particle of an atom?
Protons and neutrons are found in the nucleus. While these are theoretically composed of quarks (conversely even more massive particles), quarks do not exist in a free state so are not "fundamental particles" by definition.
Which particle has the least amount of mass?
The 'rest mass' of the photon is zero ... but the photon is never at rest, and it has plenty of mass at the speed of light, at which it is always traveling. so that let's the photon out. Amongst particles that actually have rest mass, but not much of it, the neutrino probably has the least.
Most massive particles in an atom?
The most massive particles in an atom are the protons and neutrons, which are located in the atomic nucleus. Protons and neutrons are about 2000 times more massive than electrons, which orbit around the nucleus.
What is the basic particle of an element called?
The basic particle of an element is called an atom. Each atom is made up of protons, neutrons, and electrons.
What particle in an atom is the least massive?
electron
What subatomic particle is the least and most massive and which subatomic particle is respectively?
The least massive subatomic particle is the electron, and the most massive is the top quark.
What particle is least massive?
The least massive principle atomic particle is the electron. Neutrons and protons are much more massive and are about equal in mass. Of course, there are even smaller particles such as quarks which are less massive than even electrons.
Which in an atom has the least mass in an atom?
Which particle? The electron.
Which subatomic particle is least massive?
An electron is the least massive subatomic particle. It has a mass of approximately 9.11 x 10^-31 kilograms.
What particle found in an atom has the least mass?
the electron
How massive is a alpha particle?
an alpha particle is made of two protons and 2 neutrons. its basically the same as the nucleus of a helium atom
Subatomic particle that has the least mass?
In the atom this particle is the electron. Generally in the particle physics: photons, gluons, neutrinos.
What stable particle found in an atom has the least mass?
the electron
Where in the periodic table would have the least massive atom?
The element hydrogen is least massive as it has only one proton, one electron.
What is heaviest particle found in the nucleus of an atom?
Neutrons are... very slightly... more massive than protons.
What is a protron?
A proton is a subatomic particle found in the nucleus of an atom. It has a positive electrical charge and is roughly 1,836 times more massive than an electron. The number of protons in an atom determines its atomic number and chemical properties.
