8(i)
Arrange the following as per the instructions given in the bracket.
(a) Na, Al, P, Si, Mg (increasing order of metallic character)
(b) Cl, F, Br, I (increasing order of electronegativity)
(c) He, Ar, Ne, Ca (increasing order of the number of shells)
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(a) P, Si, Al, Mg, Na
(b) I, Br, Cl, F
(c) He, Ne, Ar, Ca