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How was the periodic table discovered and organized?
Dmitri Mendeleev first organized the periodic table by atomic number. Later, Henry
Moseley improved the design of the periodic table by arranging the columns into families.
Dmitri Mendeleev first organized the periodic table by atomic mass. Later, Henry
Moseley improved the design of the periodic table by arranging the elements by atomic
number.
Dmitri Mendeleev first organized the periodic table by atomic number. Later, Henry
Moseley improved the design of the periodic table by arranging the elements by atomic
mass
Dmitri Mendeleev first organized the periodic table by atomic mass. Later, Henry
Moseley improved the design of the periodic table by arranging the columns into families.

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Dmitri Mendeleev first organized the periodic table by atomic mass. Later, Henry Moseley improved the design of the periodic table by organizing the columns into families.

How was the periodic table created?

Dmitri Mendeleev (1834-1907), in 1869, while in Russia, had the same idea as Meyer, who was studying in Germany. He more meticulously arranged a periodic table where the 63 known chemical elements were arranged in columns based on their atomic masses.

With this information, we can conclude that Dmitri Mendeleev first organized the periodic table by atomic mass. Later, Henry Moseley improved the design of the periodic table by organizing the columns into families.

Learn more about periodic table in brainly.com/question/11155928

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