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
Mention any two trends exhibited by elements when we go from left to right across the period of the periodic table.
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View Solution$(a)$ Amongst the following elements,identify the ones that would form anions:
$K, O, Na, F, Ca, Cl, Mg$
$(b)$ Write the electronic configuration of the anions identified above.
$K, O, Na, F, Ca, Cl, Mg$
$(b)$ Write the electronic configuration of the anions identified above.
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View SolutionThe scientist who showed that the atomic number of an element is a more fundamental property than its atomic mass is:
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View SolutionWhich of the following gives the correct increasing order of the atomic radii of $O$,$F$ and $N$?
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View SolutionArrange the following elements in the order of their increasing nonmetallic character:
$Li, O, C, Be, F$
$Li, O, C, Be, F$
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