.In 1869 the Russian chemistry professor Dmitri Ivanovich Mendeleev and four months later the German Julius Lothar Meyer independently developed the first Periodic Table, arranging the elements by mass. its invention though is generally credited to Russian chemist Dmitri Mendeleev . The layout of the table has been refined and extended over time, as new elements have been discovered. In the 1940s Glenn T. Seaborg identified the transuranic lanthanides and the actinides, which may be placed within the table, or below
This scientist was J. J. Thomson.
JJ Thomson discovered the electron in 1897.
De Chancourtois is known for his contribution to the development of the early periodic table of elements. He arranged the elements in a spiral or helical format based on atomic weights, which foreshadowed the modern periodic table structure. This arrangement helped in understanding the periodic trends and relationships between elements, paving the way for the organization of elements we use today.
The scientist who recognized the periodic table for atomic number was Henry Moseley. He discovered that elements should be ordered by atomic number rather than atomic mass, which led to the modern understanding of the periodic table.
He found the number of protons an element has. present periodic table is according to it.
This scientist was J. J. Thomson.
Henry Moseley showed elements in the periodic table should be in order by their atomic number instead of atomic mass.
JJ Thomson discovered the electron in 1897.
Early scientists like Dmitri Mendeleev and Julius Lothar Meyer made contributions to the development of the periodic table by arranging elements based on their properties and atomic masses. Mendeleev's work led to the creation of the modern periodic table, which helped predict the properties of undiscovered elements and organize known elements in a systematic way. Meyer also made significant contributions by independently arranging elements in a periodic manner, which further supported the development of the periodic table.
Dmitri Mendeleev is credited with creating the Periodic Table of Elements in 1869. He arranged elements by increasing atomic weight and noticed periodic trends in their properties which led to the development of the modern periodic table.
Julius Lothar Meyer played a significant role in the development of the periodic table by independently publishing a periodic table of elements that showed the correlation between atomic volume and atomic weight. His work helped pave the way for the later development of the modern periodic table based on atomic number. Meyer's contribution, along with that of Dmitri Mendeleev, laid the foundation for our current understanding of the organization of elements.
Moseley discovered the modern periodic table.
Dmitri Mendeleev organized the elements into the periodic table in the 19th century. His table is known as the Periodic Table of Elements.
De Chancourtois is known for his contribution to the development of the early periodic table of elements. He arranged the elements in a spiral or helical format based on atomic weights, which foreshadowed the modern periodic table structure. This arrangement helped in understanding the periodic trends and relationships between elements, paving the way for the organization of elements we use today.
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.
he invented the first periodic table..
a scientist and the creator of the periodic table.