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A electron has 0.51 Mev/c2 meaning electronvolts.
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∙ 11y ago
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The rest mass energy of an electron positron pair is?
Twice the mass of the electron, since the positron has the same mass of the electron. Or the equivalent, in energy units.An electron has a mass or energy of 511 keV.
What particle has almost no mass?
The lightest subatomic particle is the electron.
Relative mass of electron?
1/1840 the mass if a hydrogen atom.
What has the least mass - electron neutron proton nucleus?
LEAST mass? That would be photos or neutrinos, which have no mass at all. Where Least is greater than zero? Electrons, probably; an electron is 1/1836th of a proton, I seem to recall. Neutrinos actually have a small nonzero mass, so small it has yet to be determined. No neutrino has a mass of more than a few eV, the electron has a mass of about 0.5MeV.
What is the difference between rest mass and effective mass of electron?
mass
Which particle has the smallest mass atoms or electron?
An electron has a much smaller mass than any atom.
How much the mass of electron?
9.109382x10^-31 kg
Is the mass of an electrons is larger than the mass of an neutron s?
No, an electron is MUCH smaller than a neutron. About 1/1836 or something like that. Just Google "mass of an electron".
How much is the mass of electron?
almost nothing 1/1840
An electron has about how much of the mass of a neutron or proton?
About 1/1800.
If an electron and a proton have the same momentum which has the higher speed?
The electron, because it has much less mass than the proton and momentum is the product of mass and speed.
How does the mass of an electron compare to the mass of a whole atom?
yes the mass of an electron is much tinnier fraction of the mass of an atom
In the electron charge to mass experiment if the electron is replaced by a proton or neutron would the charge to mass ratio value still be the same why or why not?
Compared to the (charge/mass) ratio of the electron:-- The (charge/mass) ratio of the proton is much smaller; although the proton charge is equal to the electron charge, the proton mass is much larger, by a factor of more than 1,800.-- The (charge/mass) ratio of the neutron is zero, because the neutron charge is zero.
Does an electron have a large or small mass?
An electron has a very small mass, not a large mass.
How does mass of an electron compare to a proton?
The mass of a proton is 2000 times the mass of an electron. Mass of electron: 9.10938 * 10-31 kg Mass of proton: 1.67262 * 10-27 kg Mass of neutron: 1.67493 * 10-27 kg Note that protons and neutrons weigh approximately the same (neutrons are slightly heavier), but electrons are MUCH lighter than both of them. The MASS of the electron is much smaller than neutrons and protons. It is common, but incorrect, to use mass and weight interchangeably. They are not synonymous.
What does the atomic mass of an electron represent?
The mass of an electron is atomic mass units is 5,485 799 090 70(16); the mass of the electron is not an atomic mass.
Does a neutron have the same mass as an electron or a proton?
A neutron has approximately the same mass as a proton. Electrons have much lower mass.
