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Mendeleev's periodic table of elements certainly wasn't created in 1901
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.
He left gaps for the new elements. The properties could be estimated from the space left by him.
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.
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elements
it has elements
To understand the concept of Periodic Table
Mendeleev's periodic table of elements certainly wasn't created in 1901
they changed the 3 new Elements.
The periodic table is just a way of grouping elements according to their atomic numbers. It helps scientists to understand why different elements react in different ways.
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In Mendeleev's periodic table, the elements were arranged in the increasing order of their atomic masses and repeating periodic properties.
Dmitri Mendeleev was a Russian chemist; he proposed the modern Periodic Table of elements in 1869.
Mendeleev predicted that properties of elements are periodic function of atomic mass. He demonstrated it by creating a table.
the Periodic Table of 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.