Первую современную атомистическую т

Первую современную атомистическую теорию выдвинул Джон Дальтон. Он предположил, что каждый химический элемент состоит из атомов, одинаковых по размерам и массе. Эти частицы предполагались неделимыми и неизменными в ходе химической реакции. Дальтон приписал атомам таких элементов, как водород, кислород, азот и сера, определенные относительные веса (точнее, массы), а также дал каждому элементу определенный символ.Однако в конце 19 века был сделан ряд открытий, которые показали, что атом вовсе не является неделимой частицей. Первое из этих открытий основывалось на изучении лучей, испусааемых отрицательно заряженным электродов. Существование этих катодных лучей было продемонстрировал в 70-х годах 19 века в целом ряде экспериментов, которые выполнили Крукс. В 1885 году Вильгельм открыл Х-лучи, которые в дальнейшем были названы рентгеновские лучами

Результаты (английский) 1:

The first modern atomic theory proposed by John Dalton. It is assumed that each chemical element consists of atoms, identical in size and weight. These particles were assumed to be indivisible and unchanged during a chemical reaction. Dalton attributed atoms of elements such as hydrogen, oxygen, nitrogen and sulfur, particularly regarding weight (more accurately, the mass), and also gave specific to each element symbol.
However, in the late 19th century, it was made a number of discoveries, which showed that the atom is not an indivisible particle. The first of these findings, based on a study of the rays, ispusaaemyh negatively charged electrodes. The existence of these cathode rays was demonstrated in the 70-ies of the 19th century in a number of experiments that Crookes performed.
In 1885, Wilhelm discovered X-rays, which were subsequently named X-rays

Результаты (английский) 2:

The first modern atomistic theory was put forward by John Dalton. He suggested that each chemical element consists of atoms of the same size and mass. These particles were supposed to be indivisible and unchanged during the chemical reaction. Dalton attributed to the atom of elements such as hydrogen, oxygen, nitrogen and sulfur, certain relative weights (more precisely, mass), and gave each element a specific symbol.
However, at the end of the 19th century a number of discoveries were made that showed that the atom is not an indivisible particle at all. The first of these discoveries was based on the study of rays produced by negatively charged electrodes. The existence of these cathode rays was demonstrated in the 1970s in a number of experiments performed by Crooks.
In 1885, William discovered x-rays, which were later called X-rays

Результаты (английский) 3:

The first modern atomic theory was put forward by John Dalton. He thinks every chemical element is made up of atoms of the same size and mass. These particles are indivisible and unchangeable in the process of chemical reaction. Dalton called the atoms of hydrogen, oxygen, nitrogen and sulfur the mass, more precisely the mass, and assigned a symbol to each element.
However, at the end of the 19th century, some discoveries showed that atoms were not indivisible particles. The first discovery is based on the study of the radiation emitted by the negative electrode. The existence of these cathode rays was demonstrated in a number of experiments in the 1970s and the 19th century, which were carried out by Crookes.
In 1885, William discovered X-rays, later known as X-rays.