Dmitry Ivanovich Mendeleyev is a fa

Dmitry Ivanovich Mendeleyev is a famous Russian chemist. He is best known
for his development of the periodic table of the properties of the chemical elements.
This table displays that elements’ properties are changed periodically when they are
arranged according to atomic weight.
Mendeleyev was born in 1834 in Tobolsk, Siberia. He studied chemistry at the
University of St. Petersburg, and in 1859 he was sent to study at the University of
Heidelberg. Mendeleyev returned to St. Petersburg and became Professor of
Chemistry at the Technical Institute in 1863. He became Professor of General
Chemistry at the University of St. Petersburg in 1866. Mendeleyev was a well-
known teacher, and, because there was no good textbook in chemistry at that time,
he wrote the two-volume “Principles of Chemistry” which became a classic
textbook in chemistry.
In this book Mendeleyev tried to classify the elements according to their
chemical properties. In 1869 he published his first version of his periodic table of
elements. In 1871 he published an improved version of the periodic table, in which
he left gaps for elements that were not known at that time. His table and theories
were proved later when three predicted elements: gallium, germanium, and
scandium were discovered.
Mendeleyev investigated the chemical theory of solution. He found that the
best proportion of alcohol and water in vodka is 40%. He also investigated the
thermal expansion of liquids and the nature of petroleum.
In 1893 he became director of the Bureau of Weights and Measures in St.
Petersburg and held this position until his death in 1907.

Результаты (русский) 1:

Dmitry Ivanovich Mendeleyev is a famous Russian chemist. He is best known for his development of the periodic table of the properties of the chemical elements. This table displays that elements’ properties are changed periodically when they are arranged according to atomic weight. Mendeleyev was born in 1834 in Tobolsk, Siberia. He studied chemistry at the University of St. Petersburg, and in 1859 he was sent to study at the University of Heidelberg. Mendeleyev returned to St. Petersburg and became Professor of Chemistry at the Technical Institute in 1863. He became Professor of General Chemistry at the University of St. Petersburg in 1866. Mendeleyev was a well-known teacher, and, because there was no good textbook in chemistry at that time, he wrote the two-volume “Principles of Chemistry” which became a classic textbook in chemistry. In this book Mendeleyev tried to classify the elements according to their chemical properties. In 1869 he published his first version of his periodic table of elements. In 1871 he published an improved version of the periodic table, in which he left gaps for elements that were not known at that time. His table and theories were proved later when three predicted elements: gallium, germanium, and scandium were discovered. Mendeleyev investigated the chemical theory of solution. He found that the best proportion of alcohol and water in vodka is 40%. He also investigated the тепловое расширение жидкостей и природы нефти. В 1893 году он стал директором бюро мер и весов в Санкт-Петербурге. Петербург и занимал эту должность до своей смерти в 1907 году.

Результаты (русский) 3:

дмитрий иванович менделеева - известный российский химик.он известендля его развития в периодической таблице свойства химических элементов.эта таблица показывает, что элементы "свойства периодически меняются, когда ониорганизованы в соответствии с атомным весом.в 1834 году родился в тобольск, сибири.он изучал химию вуниверситет санкт - петербурга, и в 1859 году, он был направлен на исследование в университетеHeidelberg.но вернулся в санкт - петербург и стал профессоромхимия в технологическом институте в 1863 году.он стал профессором секретаряхимия в университете санкт - петербурга в 1866 году.но было хорошо - -известный учитель, и, поскольку не существует хороший учебник по химии в это времяон написал два тома "принципы химии", который стал классическимучебник по химии.в этой книге, но пытались классифицировать элементы согласно иххимические свойства.в 1869 году он опубликовал свой первый вариант его периодической системыэлементы.в 1871 году он опубликовал улучшенная версия периодическая таблица, в которойон оставил пробелы, элементы, которые не были известны в это время.его стол и теориипозже, когда были доказаны три предсказал элементы: галлия, германия, искандий обнаружено не было.но расследование химической теории решения.он обнаружил, чтолучшая доля алкоголя и в воде, водка - на 40%.он также расследовалатепловое расширение жидкостей и характер нефти.в 1893 году он стал директором бюро мер и весов в St.петербург и занимал эту должность до его смерти в 1907 году.