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A proton (or anti-proton).

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13y ago

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What one of a nucleus proton and neutron have the least amount of mass?

A proton has slightly less mass than a neutron.


What subatomic particle has a mass slightly less than of a neutron?

The subatomic particle that has a mass slightly less than that of a neutron is the proton. While both protons and neutrons are nucleons found in atomic nuclei, the neutron has a slightly greater mass, making the proton's mass approximately 0.938 GeV/c² compared to the neutron's mass of about 0.939 GeV/c². This slight difference in mass plays a crucial role in nuclear interactions and stability.


Mass of a proton is much greater than the mass of a neutron?

The mass of a proton is approximately 1.67 x 10^-27 kg, while the mass of a neutron is also approximately 1.67 x 10^-27 kg. These two particles have nearly equal masses, with the mass of a proton slightly greater than that of a neutron.


What two subatomic substances have a mass of about 1 amu?

The proton an neutron both have a mass of about 1 amu. (Both have a mass just slightly above 1 amu, and the neutron's mass is slightly larger than that of a proton.)


What is a neutron in an atom?

The neutron is a subatomic particle with no net electric charge and a mass slightly larger than that of a proton.


What is the mass of a neutron in an atom?

The mass is slightly higher than the mass of proton i.e 1840 times of an electron.


What does adding a nuetron to an atom nucleus do to the atoms mass?

Since a neutron has mass, adding a neutron to an atomic nucleus increases the atom's mass.


Does a neutron weigh as much as a proton?

No, a neutron is slightly more massive than a proton. Both particles have roughly the same mass, but due to the different composition of their internal quarks, the neutron is slightly heavier.


If a proton had a mass of 1 what is the mass of an electron and neutron relative to the mass of the proton?

If a proton would be 1, an electron would be 0.000544. An electron is 1,836 times lighter than a proton. A neutron would be 1.001 as a proton is 99.86% the mass of a neutron


Does a neutron have mass and if so, how does it compare to the mass of other subatomic particles?

Yes, a neutron has mass. The mass of a neutron is slightly greater than the mass of a proton, which is another subatomic particle found in the nucleus of an atom. Neutrons and protons are both much more massive than electrons, which are the smallest subatomic particles.


What subtomic particle has the same mass as a proton?

Commonly considered to be a neutron. However the true mass of a neutron is slightly higher than the combined mass of a proton and an electron.


Would a electron have far less mass than a proton or a neutron?

Yes, the mass of an electron is roughly 1835 times less