What two particles have approximately the same mass?

1 Answer
anor277
Jan 11, 2017

The #"nucular"# particles: #"protons and neutrons"#.

Explanation:

The nuclear particles, protons and neutrons, are conceived to have a positive electronic charge, and a neutral charge respectively. The protonic mass is #1.672621898(21)xx10^(−27)*kg#.

And the neutron mass is #1.674927471(21)xx10^(−27)* kg#, so to a first approx. these masses are equal.

Data are from this site, and this [site.](https://en.wikipedia.org/wiki/Neutron) Protons and neutrons engage in the strong nuclear force, which, at nuclear ranges, is stronger than the electrostatic forces of repulsion that operates between the protons.

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