Class 10SciencePeriodic Classification of ElementsMix Examples - Periodic Classification of Elements
EasyWrite true or false for the statement: In Mendeleev's periodic table,elements were arranged in the order of their increasing atomic masses and it was also observed that there occurs a periodic recurrence of elements with similar physical and chemical properties.
(TRUE) The statement is True. Mendeleev's periodic law states that the properties of elements are a periodic function of their atomic masses. He arranged the elements in increasing order of their atomic masses and observed that elements with similar physical and chemical properties repeat after regular intervals.
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Similar Questions
Which of the following sets of elements is written in the order of their increasing metallic character?
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$Na, Si, Cl, Mg, Al$
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View SolutionState the Modern Periodic Law.
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View SolutionThe atomic number of an element is $17$. Predict $(a)$ its valency,$(b)$ whether it is a metal or non-metal,$(c)$ its relative size with respect to other members of its group. Justify your answer in each case.
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