it has elements
Mendeleev predicted that properties of elements are periodic function of atomic mass. He demonstrated it by creating a table.
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Because the properties of the elements change in a periodic fashion. In the early versions, when fewer elements were known, the chemically similar elements were thought to occur every eight positions.
yes
it has elements
To understand the concept of Periodic Table
Mendeleev's periodic table of elements certainly wasn't created in 1901
In Mendeleev's periodic table, the elements were arranged in the increasing order of their atomic masses and repeating periodic properties.
Mendeleev predicted that properties of elements are periodic function of atomic mass. He demonstrated it by creating a table.
they changed the 3 new Elements.
elements
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Dmitri Mendeleev was a Russian chemist; he proposed the modern Periodic Table of elements in 1869.
It looks the same as it did when Mendeleev created it. There are no changes made to the table throughout the years because Mendeleev had predicted the correct placement for all of our current known elements.
Dmitri Mendeleev was a Russian chemist who proposed the Periodic Law. He published the first periodic table of the chemical elements in 1869, based on the increasing atomic masses of the different elements.
See the link below fot the IUPAC model of the periodic table of elements.