he measerd elements by atomic weight and/or mass
Mendeleev, Bohr - look it up!
Dmitri Mendeleev arranged the known chemical elements into a systematic chart known as the periodic table. His arrangement was based on the elements' atomic mass and chemical properties, leading to the organization of elements in periods and groups. Mendeleev's periodic table laid the foundation for the modern understanding of the relationship between elements.
Dmitri Mendeleev
The gaps in the periodic table left by Mendeleev were eventually filled in as new elements were discovered. Scientists continued to study and experiment, leading to the discovery and verification of elements that fit into the empty spaces in the periodic table.
the samepattern for how many protons all elements have to they are all factors of each other. That is why the periodic table is set up the way it is in that awkward shape
The periodic table was set up in the 19th century, specifically in 1869 by Dmitri Mendeleev. Mendeleev organized the elements based on their properties and atomic weights, creating the foundation for the modern periodic table.
Dmitri Mendeleev set up the periodic table in 1869. He organized the elements based on their properties and atomic weights.
Dmitri Mendeleev came up with the modern Periodic Table in 1869.
Dmitri Mendeleev was a Russian chemist and inventor who is best known for formulating the Periodic Law and creating the periodic table of elements. He is considered the "father of the periodic table" for his contributions to the field of chemistry.
Dmitri Mendeleev
Dmitri Mendeleev.
The name "periodic table" was introduced by Dmitri Mendeleev, a Russian chemist, in 1869. Mendeleev organized the elements into a table based on their atomic weights and observed recurring patterns or "periods" in their properties.
Mendeleev arranged the elements in the increasing order of their atomic masses and repeating periodic properties.
Dmitri Mendeleev was a chemist who is best known for being the first one to sort and set up the Periodic Table of Elements.
Dmitri Mendeleev is the scientist who is credited with first arranging and classifying elements into a chart that laid the foundation for the modern periodic table. Mendeleev's periodic table arranged elements by their atomic weight and predicted the properties of unknown elements that were yet to be discovered.
Mendeleev, Bohr - look it up!
he drew up a table that grouped elements according to their atomic weights, his table became the basis for the periodic table of elements used today.