Эерэг цэнэгтэй, тогтвортой, элетроноос 1836,12 дахин их буюу 1.672 614 × 10–27 kg жинтэй жижиг хэсэг
An elementary particle that is stable, bears a positive charge equal in magnitude to that of the electron, and has a mass of 1.672 614 × 10–27 kg, which is 1836.12 times that of the electron.
