Question

appreciate the efforts of mendeleefs as he shown the way to construct the periodic table​

Answer 1

Explanation:

Mendeleev's periodic table presented a new paradigm, with all of the elements positioned within a logical matrix. The elements are arranged in a series of rows called “periods,” so that those with similar properties appear in vertical columns. Each vertical column is called a “group,” or family, of elements.

Mendeleev realized that the physical and chemical properties of elements were related to their atomic mass in a 'periodic' way, and arranged them so that groups of elements with similar properties fell into vertical columns in his table.

Mendeleev's table became widely accepted, primarily because he predicted the characteristics and placement of elements which were yet to be discovered. One of the major developments that allowed for what became known as the periodic table was the idea of atomic mass, which is attributed to John Dalton.

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