Question

elements have been arranged in the following sequence on the basis of their atomic masses... F,Na,Mg,Al,Si,P,S,Cl,Ar,K... (1)Pick out two sets of element having similar properties in the given sequence. (2) the given sequence represent which law of classification of element?​

Answer 1

$\mathcal{ANSWER}$

(I) The elements having similar properties are

F, Cl - Halogens

Na, K - Alkali Metals

(II) The elements are the periodic function of thier atomic masses

Answer 2

the elements having same properties are :-

halogen :- chlorine, fluorine