He married Anna Ivanova Popova the year after the divorce, in He had a total of six children from these marriages. In at age 72, Mendeleev died from the flu. He was living in St. Petersburg at the time. His last words, spoken to his doctor, reportedly were, "Doctor, you have science, I have faith.
Mendeleev, despite his achievements, never won a Nobel Prize in Chemistry. In fact, he was passed over for the honor twice. The Periodic Table did not gain acceptance among chemists until Mendeleev's predictions for new elements were shown to be correct. After gallium was discovered in and germanium in , it was clear that the table was extremely accurate.
By the time of Mendeleev's death, the Periodic Table of Elements was internationally recognized as one of the most important tools ever created for the study of chemistry. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile. Measure ad performance. Select basic ads. Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights.
Measure content performance. Develop and improve products. List of Partners vendors. Share Flipboard Email. Anne Marie Helmenstine, Ph. Chemistry Expert. Helmenstine holds a Ph. She has taught science courses at the high school, college, and graduate levels. As news of his remarkable accomplishment began to spread, Mendeleev became something of a hero, and interest in the periodic table soared. In all, Mendeleev predicted 10 new elements, of which all but two turned out to exist. He later proposed that the positions of some pairs of adjacent elements be reversed to make their properties fit into the periodic pattern.
He suggested swapping cobalt with nickel and argon with potassium, which he believed had been wrongly placed because their true atomic weights were different from the values chemists had determined.
It took until , some six years after Mendeleev had died, to clear up this ambiguity. He kept a collection of cards, each of which contained data on a different element.
On 17 February , while arranging his cards in order of atomic weight, he suddenly noticed a repeating pattern, whereby elements with similar properties would appear at regular intervals. He had discovered the phenomenon of periodicity, and it was this discovery that led to the formation of the periodic table we know and use today. While Mendeleev is best known for his work on the periodic table, in fact his career is notable for the diversity of his interests.
Much of his work was very practical and applied, and he attempted to improve the efficiency of various industries. He also tested fertilisers on his own property, and advocated for fertilisers to be used more widely in agriculture. He wanted to bring scientific knowledge to the common people of Russia, and travelled around the countryside by train — in third class — meeting with peasants and offering scientific advice on their day to day problems such as manuring strategies.
Mendeleev was fascinated with shipbuilding and Arctic Maritime navigation, and he wrote over 40 scientific papers on the subject. He worked with the Russian navy on other matters too — developing his own formula for smokeless gunpowder at their request. In he made a solo ascent in a hot-air balloon, in an attempt to observe a solar eclipse, even though he had never flown a balloon before and had no idea how to land it.
Other achievements included introducing the metric system in Russia, defining the critical temperature of a gas, and determining the nature of solutions. He was also a keen traveller, photographer and collector, and was even known as an excellent manufacturer of luggage. He put his suitcases together using a special bonding glue that he discovered himself whilst researching adhesive substances. In Dmitri — under pressure from his sister — married a woman named Feozva Leshcheva, and they had two children together, Vladimir and Olga.
It was not a happy marriage, with Dmitri prioritising his work in St Petersburg, and his wife living mainly alone with the children, miles away near Moscow. In , when Dmitri was 46, he met and fell in love with 19 year-old music student Anna Popova.
He became obsessed with her, proposed to her, and threatened suicide if she refused. He then asked his now estranged wife for a divorce. In Orthodox Russia divorce was complicated and heavily frowned upon, and even after the marriage was terminated the church forbade Mendeleev from marrying again for another six years.
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