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The Periodic Table
Transcript of The Periodic Table
Dmitri Mendeleev was born in the village of Verkhnie Aremzyani. The village is by Tobolsk in Siberia in February 8, 1834 His parents were Ivan Pavlovich Mendeleev and Maria Dmitrievna Mendeleeva. His parents brought him up in the Christian Orthodox Church but Dimitri adopted a form of Deism in latrer life. Dimitri Mendeleev is thought to be the youngest of either 11, 13, 14 or 17 siblings. Different Records tell different information so scientists are unsure of how many siblings he had.
Dmitri's mother most likely believed education. His mother traveled all around Russia to find him an education. She believed so much in education she continued traveling around when a collage rejected him. As a young child he went to Gymnasium (school). A gymnasium is a type of school with a strong emphasis on academic learning.
On 4 April 1862 Dmitri proposed to Feozva Nikitichna Leshcheva and married her on the 27th of April. In 1876, he fell in love with Anna Ivanova Popova . In 1881 he proposed to her said he would kill himself if she refused. He had seven children and only one was Feonza's.
Some of his Achievements
In late August 1861 he wrote his first book on the spectroscope.
Mendeleev was widely honored by scientific organizations all over Europe, including the Davy Medal from the Royal Society of London and later was awarded the Copley Medal in 1905.
Dmitri Mendeleev's Periodic Table
As taken of wikiwand
The elements, if arranged according to their atomic weight, exhibit an apparent periodicity of properties.
Elements which are similar regarding their chemical properties either have similar atomic weights (e.g., Pt, Ir, Os) or have their atomic weights increasing regularly (e.g., K, Rb, Cs).
The arrangement of the elements in groups of elements in the order of their atomic weights corresponds to their so-called valencies, as well as, to some extent, to their distinctive chemical properties; as is apparent among other series in that of Li, Be, B, C, N, O, and F.
The elements which are the most widely diffused have small atomic weights.
The magnitude of the atomic weight determines the character of the element, just as the magnitude of the molecule determines the character of a compound body.
We must expect the discovery of many yet unknown elements–for example, two elements, analogous to aluminium and silicon, whose atomic weights would be between 65 and 75.
The atomic weight of an element may sometimes be amended by a knowledge of those of its contiguous elements. Thus the atomic weight of tellurium must lie between 123 and 126, and cannot be 128. (Tellurium's atomic mass is 127.6, and Mendeleev was incorrect in his assumption that atomic mass must increase with position within a period.)
Certain characteristic properties of elements can be foretold from their atomic weights.