Question

Arrange the following as per the instruction given in the brackets. (i) Li, F, N [increasing order of electronegativity] (ii) Na, Al , Cl [increasing order of Ionization potential ] (iii) O2, N2, Cl2 [increasing order of number of covalent bonds] (iv) Zn2+, Na+ , Cu+2 [order of preference of discharge at the cathode] (v) Br , F , Cl [Decreasing order of atomic radius]

Answer 1

across the period EN increases

down the group EN decreases

Answer 2

Dear friend,

● Answers -
(i) Increasing order of electronegativity -
Li < N < F

(ii) Increasing order of Ionization potential -
Na < Al < Cl


(iii) Increasing order of number of covalent bonds -
Cl2 < O2 < N2

(iv) Order of preference of discharge at the cathode -
Na+ < Zn2+ < Cu2+

(v) Decreasing order of atomic radius -
Br > Cl > F

Hope this was useful...