>>68-70
>クーロン力ポテンシャルエネルギー除外質量だから軽いのは当たり前だぞ
病院逝けや、知障

https://en.wikipedia.org/wiki/Discovery_of_the_neutron#The_nature_of_the_neutron
As posed by Chadwick in his Bakerian Lecture in 1933, the primary question was the mass of the neutron relative to the proton.
If the neutron's mass was less than the combined masses of a proton and an electron (1.0078 u), then the neutron could be a proton-electron composite because of the mass defect from the nuclear binding energy.
If greater than the combined masses, then the neutron was elementary like the proton.

>高校からやり直せ

お前がな