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  • 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 classificon of element

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

Answers (1)

(a) SET 1 – F, Cl
SET 2 – Na, K

(b)The law of octaves states that every eighth element has similar properties when the elements  are arranged in the increasing order of their atomic masses.
Based on Newlands octaves rule the above elements can be arranged as Follows:
F     Na   Mg   Al   Si   P   S   Cl    K    Ar

 

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