Moseley
Yes, there were elements on the first periodic table. I believe that there are still elements on the periodic table.
Hydrogen is found at the very top left of the periodic table. It is the first element on the periodic table and it is shown with the atomic symbol H.
The periodic table is very useful.
Russian chemist Dmitri Mendeleev (1834-1907) published the first periodic table of elements in 1869.
The first group of the periodic table contains the reactive alkali metals: lithium, sodium, potassium, rubidium, cesium, and francium.
It is at the very top left column. Hydrogen is the first element.
Very probably in 1913, after the discovering of the first isotope of Pa.
on the very right side of the periodic table. (the farthest column to the right)
Periods are horizontal.Groups are vertical.Just think group = up and downperiod= right and left
Dmitri Mendeleev, a Russian scientist, is credited with creating the periodic table of elements in the 19th century. He arranged the elements in order of increasing atomic mass and grouped them based on their chemical properties, leading to the development of the modern periodic table.
about 106 are on a periodic table for the very time being
The very first periodic table was created by Dmitri Mendeleev and was based mainly on atomic masses. The modern periodic table was designed by Henry Moseley and is based not only on atomic masses but also their chemical and physical properties.