Question

salient features and achievements of the Mandeleefs periodic table explain​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

Salient features..

Mendeleev arranged the elements in horizontal rows (known as periods) in the increasing order of their atomic masses. Each vertical column (called groups) contained elements of similar properties. The main features of Mendeleev's periodic table are: Groups and sub-groups: There are eight groups (I to VIII).

Achievement s....

Dmitri Mendeleev

Russian chemist

Awards :

Demidov Prize in 1862

Copley Medal in 1905

Davy Medal in 1882