Elements have been arranged in the following sequence on the basis of their increasing atomic masses:

CBSE Class 10 CBSE Class 10 Science
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1

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?

2

(a) (i) F and Cl (ii) Na and K.
(b) Newlands’ law of octaves.