Question

State the trend in chemical reactivity:
(i) across the period left to right (ii) down the group

Answer 1

Answer:

(1) Period - reactivity increases as you go from the left to the right across a period. Group - reactivity decreases as you go down the group.

(2)The farther to the left and down the periodic chart you go, the easier it is for electrons to be given or taken away, resulting in higher reactivity.

Answer 2

Answer:

(i) Across a period, the chemical reactivity of elements first decreases and then increases. (ii) Down the group, chemical reactivity increases as the tendency to lose electrons increases down the grouP

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