In the portion of the Periodic Table given below, the letters A, B,

In the portion of the Periodic Table given below, the letters A, B, represent the elements in periods 2 and 3 and groups 1, 2,13,14,15,16,17 and 18 which are not die usual symbols of the elements.12131415161718Period 2ABCDEFGHPeriod 2IJKLMNOPQRSTUStudy the table and answer the following questions : (i) Which is the most electropositive element ? (ii) Which is the most electronegative element ? (iii) Which elements have properties that are similar to those of the element O ? (iv) Which elements are the noble gases ? (v) Which elements have a valency of 4 ? (vi) Which is more metallic, Q or R ? (vii) Which is more non-metallic, E or M ? (viii) What is the collective name for the elements G, O, and S? (ix) Which elements are represented by the letters I, J, N, and O?

Answer»

(i) T,

(ii) G,

(iii) G and S,

(iv) H and P,

(v) D and L,

(vi) Q,

(vii) E,

(viii) The halogens,

(ix) I : Sodium, J : Magnesium; N: Phosphorus; O: Chlorine.