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Can mass be negative or not?

Updated: 9/24/2023
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Q: Can mass be negative or not?
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A neutron has a negative charge and a mass smaller than the mass of a proton?

Yes, the neutron has a negative charge and a mass that is smaller than the mass of a proton.


Is there an affect on the mass of an object with a negative charge?

If you compare the mass of a positron to an electron, or of a proton to an anti-proton, and so forth, the mass is the same, even though the charge is reversed. Negative charge does not mean negative mass, it has no bearing on the mass.


Elementary particle that carries a negative charge and almost no mass?

A electron is a subatomic particle outside the nucleus carrying a negative charge and very little mass. Other mass is negligible mass or a negative charge.


Define negative charge without using mass of electron?

Mass and charge are not connected. Negative charge is the charge carried by an electron.


Can the gravitational potential energy of an object be negative?

No. That would require a negative mass or a negative distance, neither of which is possible.


What are the negative effects of mass wasting?

ambot


What is the effect of negative charge on the mass of a body?

No measurable effect at all. The electrons which cause the negative charge have such an unbelievably small mass that billions of them cannot make any observable change to the mass.


Is it true holes have a mass?

The electrons that are missing have a negative effective mass. So the holes have a positive effective mass.


Which subatomic particles have very little mass and a negative charge-?

You're probably thinking of electrons, whose mass is much smaller than nucleons but also have a negative charge. Indeed, the electron has the smallest amount of mass of any particle with a negative charge.


Is the proton positive negative or neutral?

What is the mass of a proton


Why is gravity only attractive?

Technically, it's not. It's only attractive between two positive masses or two negative masses. One positive mass and one negative mass would repel each other. It's just that we've never encountered a piece of negative mass yet.


When matter created gravity as antimatter why not create anti-gravity?

"Antimatter" is not negative mass. Mass is a positive quantity for both matter and antimatter. So gravity is always attractive, even if one of the masses in the relationship happens to be antimatter. If such a thing as negative mass exists, then the forces between it and a lump of normal mass would be repulsive ones. Antimatter is observed routinely, but no evidence of negative mass has ever been observed. When matter & antimatter annihilate energy is released per E = mc2 where m corresponds to the sum of their masses. If the antimatter had negative mass then instead of a positron/electron annihilation releasing energy corresponding to twice the electron mass (as it does) the mass of the electron and negative mass of the positron would cancel resulting in no energy release (this does not happen). This proves that both matter & antimatter have positive mass, without even referring to gravity. As they both have positive mass their gravity will be attractive not repulsive.