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Julius Lothar Meyer was a German chemist. Additionally, Julius Lothar Meyer was one of the pioneers in developing the first versions of the periodic table of chemical elements.
Early life
Julio Lothar Meyer was born in August 19, 1830, in Varel, Duchy of Oldenburg, Germany. At the age of 64 yearsdied and was a German national.
He was the son of Anna Biermann (mother) and Friedrich August Meyer (mother). Professionally, his father was a prominent doctor in the city and his mother was the daughter of another doctor.
He grew up with his six other siblings and came from a wealthy family.
Death
Unfortunately, in the April 11, 1895, He died of a stroke at the age of 64.
Educational background and career
After graduating from the Altes Gymnasium in Oldenburg, Julius Lothar Meyer studied medicine at the University of Zurich in 1851. Two years later he studied pathology as a student of Rudolf Virchow at the University of Würzburg.
Additionally, he studied under Carl Ludwig in Zurich, which inspired him to focus on physiological chemistry. He moved to the University of Heidelberg, where Robert Bunsen held the chair of chemistry, after graduating as a Doctor of Medicine at Würzburg in 1854.
Later, he obtained his Ph.D. in chemistry from the University of Breslau in 1858, with a thesis on the effects of carbon monoxide on the blood. Influenced by the mathematical teaching of Gustav Kirchhoff, he studied mathematical physics at the University of Königsberg with Franz Ernst Neumann.
After receiving his habilitation (certificate for university teaching), in 1859 he became Privatdozent in physics and chemistry at the University of Breslau. He accepted a position at the Eberswalde Forestry Academy in Neustadt-Eberswalde in 1866, but two years later he was appointed a member of the Karlsruhe Academy. Polytechnic.
Furthermore, he was the first to propose in 1872 that the six carbon atoms of the benzene ring (which August Kekulé had hypothesized a few years earlier) were only connected by single bonds, with the fourth valency of each carbon atom pointing toward the ring core. the ring.
Periodic table
Meyer is best known for his contribution to the periodic table of elements. He observed, as did John AR Newlands in England, that arranging elements according to their atomic weights resulted in groups with comparable chemical and physical properties that were repeated at regular intervals.
According to him, if atomic weights were plotted as ordinates and atomic volumes as abscissa, the curve would produce a succession of maxima and minima, with the most electropositive elements appearing at the peaks of the curve in the order of their atomic weights.
Subtitle: Julius Lothar Meyer, a German chemist (Source: Institute for the History of Science)
His book, Die modernen Theorien der Chemie, which he began writing in Breslau in 1862 and published two years later, had an early version of the periodic table with 28 elements classified into six families by valence; For the first time, the elements were organized according to their valence.
Until then, efforts to organize elements by atomic weight had been hampered by the predominant use of equivalent weights for elements rather than atomic weights. This influential work was frequently expanded and published in several editions. Meyer created an expanded table in 1868 that was very similar to Mendeleyev’s table published in 1869.
Their works
Julius Lothar Meyer did not publish his own table, a graph relating atomic volume and atomic number, and clearly showing the periodic correlations of the elements, until 1870. He claimed no previous title for his achievement and confessed that he had been reluctant . to predict the presence of unknown elements, as Mendeleyev had done.
Likewise, he worked in various fields of chemistry, although his main interest was the classification of elements. Additionally, he focused on recalculating various atomic weights and used the periodic table to predict and examine the chemical properties of related elements.
Awards
In 1882, Julius Lothar Meyer was awarded the Davy Medal of the Royal Society. He gained recognition for his work on the Periodic Law with Dmitri Mendeleev. Google would commemorate his 190th birthday with a Google Doodle on August 19, 2020.
Julius Lothar Meyer – Net worth 2023
Regarding his earnings, income, and net worth, there is no information about Meyer’s earnings. However, she could have earned a decent sum of money which could have helped in his personal career.
civil status
Talking about his relationship status, Julius Lothar Meyer married Johanna Volkmann in 1866. Other than this, not much else is known about the date of his marriage, his children, and other personal things. Until the time of his death, Meyer was not part of any controversies or rumors.
Julius Lothar Meyer – Body Measurements
His body statistics such as height, weight, hair, and eye color are unknown at the moment. However, when looking at the photo of him, he has long hair and a long beard.
Social media
In his time there was no Internet and the media were not developed. And he is no longer in this world, so he is not active on Facebook, Twitter and Instagram.
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Source: vcmp.edu.vn