Arrange the following elements as directed (i) Ar, He, Ne (in incre

1.	Arrange the following elements as directed (i) Ar, He, Ne (in increasing order of electron shells) (ii) Li, F, C, O (in increasing order of electron affinity) (iii) Cl, Mg, P, Na (in increasing order of atomic size) (iv) Cl, Li, F, N (in increasing order of electronegativity) (v) Cl, S, Al, Na (in increasing order of ionisation potential) (vi) Increasing order of atomic size. (vii) Increasing non-metallic character (viii) Increasing ionisation potential. (ix) Increasing electron affinity. (x) Decreasing electronegativity.
Answer» (i) Increasing order of number of electron shells: He, Ne, Ar (ii) Increasing order of electron affinity: Li, C, O, F (iii) Increasing order of atomic size: Cl, P, Mg, Na (iv) Increasing order of electronegativity : Li, N, Cl, F (v) Increasing order of ionisation potential : Cl, S, Al. Na. (vi) F>Cl>Br>I. (vii) I<Br<Cl<F. (viii) I<Br<Cl<F. (ix) F<Cl<Br<l. (x) F>Cl>Br>I.

Arrange the following elements as directed (i) Ar, He, Ne (in increasing order of electron shells) (ii) Li, F, C, O (in increasing order of electron affinity) (iii) Cl, Mg, P, Na (in increasing order of atomic size) (iv) Cl, Li, F, N (in increasing order of electronegativity) (v) Cl, S, Al, Na (in increasing order of ionisation potential) (vi) Increasing order of atomic size. (vii) Increasing non-metallic character (viii) Increasing ionisation potential. (ix) Increasing electron affinity. (x) Decreasing electronegativity.

Answer»

(i) Increasing order of number of electron shells: He, Ne, Ar

(ii) Increasing order of electron affinity: Li, C, O, F

(iii) Increasing order of atomic size: Cl, P, Mg, Na

(iv) Increasing order of electronegativity : Li, N, Cl, F

(v) Increasing order of ionisation potential : Cl, S, Al. Na.

(vi) F>Cl>Br>I.

(vii) I<Br<Cl<F.

(viii) I<Br<Cl<F.

(ix) F<Cl<Br<l.

(x) F>Cl>Br>I.