Однако в конце XIX века был сделан

Однако в конце XIX века был сделан ряд открытий, показавших, что атом вовсе не является неделимой частицей. Первое из этих открытий основывалось на изучении лучей, испускаемых отрицательно заряженным электродом. Существование этих катодных лучей было продемонстрировано в 70-х годах XIX века в целом ряде экспериментов, которые выполнили Крукс и Гольдштейн. В 1895 г. Вильгельм Рентген открыл Х-лучи, названные в дальнейшем рентгеновскими лучами. В следующем году Антуан Анри Беккерель показал, что соль урана самопроизвольно испускает невидимое излучение, подобное рентгеновским лучам; явление было названо радиоактивностью. За свои исследования Рентген и Беккерель были удостоены Нобелевской премии.

Результаты (английский) 1:

However, at the end of the 19th century was made a number of discoveries, which showed that the atom is not indivisible particle. The first of these discoveries are based on a study of rays emitted by the negatively charged electrode. The existence of these cathode rays was demonstrated in 70-ies of the XIX century in successive experiments, which fulfilled the Crooks and Goldstein. In 1895, Wilhelm Roentgen discovered. X-rays, called later by x-ray. The following year, Antoine Henri Becquerel showed that salt uranium spontaneously emit invisible radiation similar to x-rays; the phenomenon of radioactivity was identified. For their study, x-ray and Becquerel was awarded the Nobel Prize.

Результаты (английский) 2:

However, at the end of the XIX century it was made a number of discoveries, which showed that the atom is not an indivisible particle. The first of these findings the study was based on the rays emitted by the negatively charged electrode. The existence of these cathode rays was demonstrated in the 70-ies of the XIX century in a number of experiments that are performed Crooks and Goldstein. In 1895, Wilhelm Roentgen discovered X-rays, called further X-rays. The following year, Henri Becquerel found that uranium salt spontaneously emits invisible radiation, like x-rays; phenomenon was called radioactivity. For their study X-rays and Becquerel were awarded the Nobel Prize.

Результаты (английский) 3:

however, at the end of the 19th century was made a number of discoveries, показавших that atom is not an indivisible part. the first of these discoveries were based on the examination of the beams emitted by negatively charged electrode. the existence of these cathode rays was demonstrated in the 1970s, the 19th century, in a large number of experiments, which complied with the crooks and goldstein. in 1895. wilhelm roentgen discovered x - rays, the further the x-rays. in the next year, antoine henri becquerel showed that salt uranium emits invisible radiation of such x-ray beams; the phenomenon was called radioactivity. for their study, x-ray and becquerel were awarded the nobel prize.