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प्रश्न
Right or wrong sentence.
While designing the periodic table, Mendeleev considered the chemical and physical properties of the elements.
पर्याय
Right
Wrong
MCQ
चूक किंवा बरोबर
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उत्तर
The given sentence is right.
Explanation:
Dmitri Mendeleev arranged the known elements by atomic mass and organised them according to recurring chemical and physical properties (he used data like molecular formulae of hydrides/oxides, melting and boiling points, densities, etc.). He also left gaps and predicted properties for undiscovered elements, which supports that he was explicitly using element properties when designing the table.
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