Question

What is/are the main contributions of Mendeleev’s Periodic Table?

• A. Systematic study of elements
• B. Prediction of new elements
• C. Correction of doubtful atomic weight
• D. All of these

Answer 1

The correct option is D All of these

The Mendeleev’s periodic table simplified and provided the systematic study of elements. Mendeleev also predicted some unknown elements, left some blank spaces and gaps on the basis of their position like eka-aluminium (gallium) and eka-silicon (germanium). Mendeleev’s periodic table also helped in correcting the doubtful atomic weight of some elements like Beryllium.