One night in February 1869, Mendeleev experienced that dream that was famous in history: at that time, 63 chemical elements that were known to the world fell into the corresponding grid, forming a table. They are arranged according to the mass of atoms and show regular changes as

One night in February 1869, Mendeleev experienced that dream that was famous in history:

At that time, 63 chemical elements that were known to the world fell into the corresponding grid, forming a table. They are arranged according to the mass of atoms and show regular changes as the mass increases.

Mendelev immediately after waking up, he immediately painted the same thing on the paper, and only made one necessary modification. He found that this cyclical change is very similar to the ups and downs of trigonometric functions, so he borrowed the concept of function period and named this table - Periodic Table .

Mendelev left blanks with great prescient knowledge when drawing the periodic table of chemical elements. He realized that certain elements were missing and accurately predicted the properties of the missing elements. Later, as time went by, the 11 elements he predicted were also found one by one.

He geniusly discovered the periodic law of , but failed to win the Nobel Prize for .

According to the decrypted archives, 10 members of the Royal Swedish Science Society were eligible for voting at that time, 4 of whom voted for Mendeleev, one abstained, and the remaining five voted for another candidate.

The second year, that is, on February 2, 1907, , Mendeleev, a world-renowned Russian chemist, passed away due to myocardial infarction. That day was only 5 days away from his 73rd birthday. Many people think this has a lot to do with his failure to win the Nobel Prize.

Who defeated Mendelev, a master of the chemistry industry at that time? What more amazing contribution did he make?

He is the French chemist Moisan .

Stones into gold

Movasan's most proud "creation" was that he made the world's first artificial diamond with graphite.

1892 He invented the electric furnace, which successfully increased the temperature of laboratory chemical reactions to 3500 degrees Celsius, and wanted to use it to make metal carbides, silicon carbides and artificial diamond .

Nobel Prize official website records

He proposed: "Using a high-temperature electric furnace to melt the carbon-doped iron, and suddenly put it into cold water. The surface of the iron is cold and shrinks sharply. The carbon wrapped in it is arranged in place according to the structure of the diamond and becomes diamond crystals.

He and his assistant burn one furnace after another, one furnace after another, but they can only get some mud-like graphite. But he firmly believed that his idea was right. Finally, in 1903, he got a small piece (0.7mm) in the laboratory. ) diamonds.

Movasan was ecstatic and immediately reported this achievement to the French Academy of Sciences. Since Movasan is a famous scientist who has been famous for a long time, the French Academy of Sciences directly announced this exciting news to the outside world without verification again - French chemists have developed artificial diamonds.

This is the true meaning of "turning stones into gold", and the whole world is excited.

1906, " artificial diamonds htm The halo of l3”, coupled with the political factors that excluded Mendeleev from the Nobel Prize Committee, and finally, the Nobel Prize in Chemistry was awarded to Moisan by 5 to 4 votes and 1 abstention.

Many European scientific research institutions and diamond dealers could not get the secret they wanted during Moisan's lifetime, and tried their best to buy Moisan's experimental records on artificial diamonds from his widow. However, no matter how they conducted the experiment, they could not get the diamond they wanted.

The pressure provided by iron solidification is actually far from enough to make graphite crystallization into diamonds. Where did the "artificial diamonds" come from?

Mystery of "artificial diamonds"

Did Movasan successfully synthesize diamonds back then? This has always been a mystery.

There are rumors that a young assistant involved in the experiment was extremely bored by the endless monotonous experiment and was almost mentally collapsed. He did not dare to openly disobey Movasan's orders. In order to end the nightmare experiment as soon as possible, he secretly mixed a few diamond particles left by the past experiment into the samples to help Movasan realize his grand ideals.

It was not until the 1950s that with the development of high-pressure research and high-pressure experimental technology that mankind made the first truly "artificial diamond".

The Nobel Prize Committee of that year claimed that Moisan's award was his contribution to fluorine element. Preparing elemental fluorine is one of the most difficult tasks in the history of chemistry. Over the past 70 years, countless famous chemists have successively tried to prepare elemental fluorine, all of which ended in failure, and some people even died of poisoning.

But if it weren't for diamonds, it's very likely that Movasan wouldn't have the chance to win the award, after all, he died not long after he came back from the award ceremony.

and Mendelev died 18 days earlier than him. Unfortunately, he discovered the law of elemental cycles and brought revolutionary changes to chemical research. His great achievements could have been rewarded with the most authoritative reward in the world.

He also continues to live in the periodic table of elements

In order to commemorate Mendeleev, the synthetic chemical element of atomic order No. 101 is also named after his name. The Chinese name is "陈" and is a metallic actinide transurethane element.

In addition, there are also "六" commemorating Einstein , "六" of Madame Curie , "六" of Nobel , "六" of Copernicus, "六" of Roentgen ... There are 15 elements in total named after scientists.

This year marks the 150th anniversary of Mendelev's discovery of the periodic law of chemical elements and inventing the periodic table of elements. It is also the "International Periodic Table of Chemical Elements" stipulated by UNESCO.

The "industry boss" of British popular science books, DK company, has joined forces with the China Encyclopedia Press to create a set of "DK Chemical Elements", which is completely a weapon for children's chemistry enlightenment and learning, and the rhythm of closing their eyes.

The book is divided into 12 chapters, systematically introducing interesting knowledge in various aspects such as the discovery, properties of each element, the forms it exists in nature, and their application in human life.

These knowledge are closely related to life, making chemical elements no longer abstract symbols, but are closely related to human daily life, artistic civilization, scientific creation and other phenomena.

For example, metal copper is obviously yellow, but why is the Statue of Liberty made of copper gray-green?

We all know that sulfuric acid is very corrosive, but sulfur compounds can be added to skin care products, and its powder can also be used to preserve dried fruits. What is the reason?

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