Russian chemist Dmitri Mendeleev
Yes, there were elements on the first periodic table. I believe that there are still elements on the periodic table.
A Periodic table The Periodic Table of the Elements.
atomic number
Out of the first 18 elements on the periodic table, 10 are solid
the first person to publish the periiodic table is Dmitry menedleev
Elements in the first row of the rare earth elements of the Periodic Table are called LANTHANIDES.
The reason the periodic table was created in the first place was to illustrate the "periodic" physical properties of the known elements of the time. Because of this, the properties of elements that were "missing" from the table could be extrapolated from the periodic trends seen in the known elements.
It is called the Periodic Table of Elements.
By grouping the elements on the Periodic Table.
Hydrogen is the first, smallest, and lightest element. It is number 1 in the periodic table of elements.
before it there was no organization, but the first periodic table was organized by atomic mass.
Mendeleev from Russia was the first person to organize the periodic table of the elements