Select the correct word from the brackets :

(a) The element below sodium in the same group would be expected to have a …………… (lower/higher) electro-negativity than sodium and the element above chlorine would be expected to have a (lower/higher) ionization potential than chlorine.

(b) On moving down a group, the number of valence electrons …………… (remains the same/increases/ decreases).

(c) Metals are good …………… (oxidising agent/ reducing agent) because they are electron …………… (acceptors/donors).

(d) Down the group, electron affinity …………… [increases, decreases, remains same].

(e) Electronegativity across the period …………… [increases/ decreases].

(f) Non-metallic character down the group …………… [increases/ decreases].

(g) In a period, increase in electron affinity increases …………… (oxidation/reduction).

(h) On descending a group, …………… (increase/decrease) in ionisation potential as well as electron affinity …………… (increases/decreases) oxidising capacity.

(i) If an element has a low ionization energy then it is likely to be …………… (metallic/non metallic).

(j) If an element has seven electrons in its outermost shell then it is likely to have the …………… (largest/smallest) atomic size among all the elements in the same period.

X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information complete the following:

(a) …………… is the metallic element.

(b) Metal atoms tend to have a maximum of …………… electrons in the outermost shell.

(c) …………… is the reducing agent.

Match the following :

In Period 3 of the Periodic Table, element B is placed to the left of element A. On the basis of this information, choose the correct word from the brackets to complete the following statements:

(i) The element B would have (lower/higher) metallic character than A.

(ii) The element A would probably have (lesser/higher) electron affinity than B.

(iii) The element A would have (greater/smaller) atomic size than B.