Dmitri Menedeleev was able to predict the properties of undiscovered elements because the Periodic Table organizes elements based on repeating properties. For example, all of the Noble Gases (the far-right column) have filled their valence electron shells and are inert gases. One could reasonably assume that if a new element was discovered that went in the noble gas column that it would be inert as well. Mendeleev used this concept to accurately predict the properties of a handful of undiscovered elements, such as Gallium and Germanium.
Independently by Dmitri Mendeleev and Lothar Meyer in 1869
You think probable to Dimitri Mendeleev.
Mendeleev developed the first periodic table and Mosely later modernized it.
Dmitri Mendeleev arranged elements on his first periodic table by increasing atomic mass and grouping elements with similar properties together. He left gaps for missing elements and predicted the properties of these undiscovered elements based on their position in the table.
This scientist is the Russian chemist Dimitri Mendeleev.
Dmitri Mendeleev
Dmitri Mendeleev was able to predict the properties of germanium by leaving gaps in his periodic table for elements that were yet to be discovered. He noticed a pattern in the properties of known elements and used this pattern to predict the existence and properties of undiscovered elements, such as germanium.
Dmitri Mendeleev is most known for creating the periodic table of elements, which he organized based on atomic weight and properties, and predicted the properties of undiscovered elements. His work laid the foundation for modern chemistry and our understanding of the elements.
Independently by Dmitri Mendeleev and Lothar Meyer in 1869
Dmitri Mendeleev's greatest triumph with the periodic table was his ability to predict the properties of undiscovered elements. Gaps in the table led him to propose the existence of new elements with specific characteristics, which were later discovered and matched his predictions, confirming the validity of his periodic law.
Dmitri Mendeleev created the first periodic table of elements in 1869. He arranged elements by increasing atomic weight and grouped those with similar properties together. Mendeleev left gaps for undiscovered elements and was able to predict the properties of these missing elements.
I believe the correct answer is he was able to predict the existence of yet undiscovered elements, due to the gaps. For instance, I believe germanium was one of the elements undiscovered in the table, its placeholder was called ekasilicon.
You think probable to Dimitri Mendeleev.
Mendeleev developed the first periodic table and Mosely later modernized it.
The early periodic table was developed by Dmitri Mendeleev in 1869. He arranged the elements based on their properties and atomic weights, leaving gaps for undiscovered elements that would later be confirmed.
Dmitri Mendeleev studied chemistry and is best known for creating the periodic table of elements. In 1869, he arranged the known elements based on their atomic mass and properties, which helped predict the properties of undiscovered elements.
Dmitri Mendeleev