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Elements have been arranged in the follo...

Elements have been arranged in the following sequence on the basis of their increasing atomic masses. F, Na, Mg, Al, Si, P, S, Cl,Ar, K.
(a) Pick two sets of elements which have similar properties
(b) The given sequence represents which law of classification of elements ?

Text Solution

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(a) The elements that have similar properties belong to the same group. From the list of elements available, elements which belong to same group are :
Na, K (Alkali metals) , F, Cl (Halogens)
(b) The sequence is according to Newland's law of octaves.
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