How was it possible that Mendeleev was able to predict the properties of elements that no one knew about?

How was it possible that Mendeleev was able to predict the properties of elements that no one knew about?

how was it possible that Mendeleev was able to predict the properties of elements that no one knew about? he was trying to arrange the elements then used the patterns he found to predict their properties. how did Moseley solve the problem of the elements that did not fit the pattern according to their properties?

How was Mendeleev able to make such accurate predictions?

Mendeleev’s predictions of physical properties—here atomic weight and atomic volume—depended upon two factors: the sequence of increasing atomic weights by which Mendeleev had arranged the elements within the table and the known values for near neighbour elements.

How did Mendeleev determine the chemical properties of the elements?

When Mendeleev arranged the elements in order of increasing atomic mass, the properties where repeated. He corrected the known atomic masses of some elements and he used the patterns in his table to predict the properties of the elements he thought must exist but had yet to be discovered.

How did Dmitri Mendeleev contribute to the atomic theory?

On 17 February 1869, Russian chemist Dmitri Mendeleev jotted down the symbols for the chemical elements, putting them in order according to their atomic weights and inventing the periodic table.

What did Dmitri Mendeleev contribute to chemistry?

Dmitri Mendeleev devised the periodic classification of the chemical elements, in which the elements were arranged in order of increasing atomic weight.

How did Dmitri accomplish this and what is so important about what he did?

After receiving an education in science in Russia and Germany, Dmitri Mendeleyev became a professor and conducted research in chemistry. Mendeleyev is best known for his discovery of the periodic law, which he introduced in 1869, and for his formulation of the periodic table of elements.

How did Mendeleev arrange elements?

Mendeleev arranged the elements in order of increasing relative atomic mass . When he did this he noted that the chemical properties of the elements and their compounds showed a periodic trend. He then arranged the elements by putting those with similar properties below each other into groups.

What is Mendeleev on the periodic table?

Dmitri Mendeleev. Dmitri Ivanovich Mendeleev was a Russian chemist and inventor. He formulated the Periodic Law, created his own version of the periodic table of elements, and used it to correct the properties of some already discovered elements and also to predict the properties of elements yet to be discovered.

What is Mendeleev’s periodic table?

Mendeleev’s Periodic Table of Elements , published in 1869, was one of the first periodic tables of elements ever published and is widely considered the first periodic table that still somewhat resembles the periodic table used in modern times. The order of the elements in the table is determined by atomic mass.