The idea that the substance consists of the smallest, indivisible particles (atoms) arose quite a long time ago.
In 1808 J. Gay-Lussac discovered and shifted the multiplicity on weight references and the volume references of chemically interacting gases.
In 1833 M. Faraday opened two laws on electrolysis. The first law approved that the mass of the substance deposited on the electrode during electrolysis is directly proportional to the amount of electricity transferred to this electrode, and the second, the mass of the chemical element deposited on the electrode is directly proportional to the molar mass of the element for a given amount of electricity. From electrolysis experiments it was concluded and it was assumed that there were negative and positive elementary carriers (ions) in matter, named anions and cations respectively.
In 1897, J. Thomson discovered a particle of cathode rays, an electron that carries a minimal amount of negative electrical charge.
Science is moving forward. New names for discoveries, names of scientists, experiments arise.
Translators enrich their vocabulary working on scientific articles. The least inaccuracy may lead to serious problems, errors and the distortion of meaning that is unacceptable.