Question

achievements of mendeleev's periodic table????? chemistry​

Answer 1

Answer:

Hii,

Explanation:

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Achievements of Mendeléev's periodic table

• element with a slightly greater atomic mass were placed.
• element with a slightly greater atomic mass were placed. He left some gaps in the Periodic Table with the prediction of.
• element with a slightly greater atomic mass were placed. He left some gaps in the Periodic Table with the prediction of. He named the future elements by prefixing a Sanskrit numeral, Eka (one) to the name of preceding element in the same group.

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Answer 2

Answer:

The achievements by Mendeleev were:

Mendeleev kept some blank spaces in the periodic for the elements that were yet to be discovered.

E.g. :- Eka-aluminium , Eka-boron, Eka-silicon

He also predicted of some elements which were yet to be discovered.

E.g:- The properties of Eka-aluminium predicted by Mendeleev and those of element gallium were almost the same .

Property Eka-aluminium Gallium

Atomic mass 68 69.7

Formula of oxide E

You can see attachment ✅

When noble gases were discovered, they could be placed in a new group without disturbing the order.

The formula of the hybrides and oxides formed by an element were treated as one of the basic the properties of an element for its classification.