Because he was creating a book called the Principle of Chemistry and he noticed the pattern in every elment. So he made a table or (chart) called Periodic Table of Elements.
Dmitri Ivanovich Mendeleev created a periodic table to sort elements.
Mendeleev arranged the known elements in his periodic table by increasing atomic mass and organizing them in a way that elements with similar properties fell into the same columns (groups). Gaps were left for undiscovered elements, which Mendeleev predicted would be found in the future.
Dmitri Mendeleev published the first periodic table in 1869. He built on the work of several other scientists, including Antoine Lavoisier, Johann Dobereiner, Alexandre-Emile Beguyer de Chancourtois, and John Newlands, who had previously studied the best way to classify the elements.
Mendeleev organized elements by their atomic mass and properties, arranging them in a table where elements with similar properties were grouped together. Gaps were left for undiscovered elements, allowing Mendeleev to predict the properties of these missing elements based on their position in the table. This led to the development of the first periodic table.
They have simliar properties and same elements although later on more elements were added to the modern periodic table.=Both periodic tables have elements grouped by similar properties. Mendeleev's periodic table had elements arranged in order of increasing atomic mass in columns with similar properties. While many of the elements are in order of atomic mass on the modern periodic table, some are not, as the modern table has elements arranged in order of increasing atomic number.=
'J' is this case is an Archaic way of writing the modern letter 'I'. It represents 'iodine.
Dmitri Mendeleev is credited with creating the first periodic table in 1869. He arranged the elements by increasing atomic mass and noticed a pattern in the properties of elements when organized this way, leading to his periodic table.
He is credited as being the creator of the first version of the periodic table of elements. Using the table, he predicted the properties of elements yet to be discovered.
Dmitri Ivanovich Mendeleev created a periodic table to sort elements.
The periodic table of elements was invented by the Russian chemist Dmitri Mendeleev and nowadays it's the most common way to tabulate the elements.
;0 The way the cards were laid out
Mendeleev organized the elements in his periodic table based on increasing atomic mass. He noticed that certain properties repeated periodically when the elements were arranged in this way.
Mendeleev found properties of elements to be the periodic function of atomic mass. So, he arranged element that way.
I think that was Dmitri Mendeleev way back in 1869.
Mendeleev arranged the known elements in his periodic table by increasing atomic mass and organizing them in a way that elements with similar properties fell into the same columns (groups). Gaps were left for undiscovered elements, which Mendeleev predicted would be found in the future.
His table was sorted by atomic mass, not atomic number. (the way today's periodic table is sorted) Mendeleev was almost right, but they did not know about protons at the time. (atomic number is the number of protons in an element) There would have been absolutely no way of him figuring out they were related to atomic number if he didn't even know about atomic number
Dmitri Mendeleev published the first periodic table in 1869. He built on the work of several other scientists, including Antoine Lavoisier, Johann Dobereiner, Alexandre-Emile Beguyer de Chancourtois, and John Newlands, who had previously studied the best way to classify the elements.