Q) Arrange the following alkali metals in order of most reactive to least reactive - Rubidium, Sodium, Lithium, Caesium, Francium and Potassium.
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down the group metallic character increase so this means they tries to donate electron and another reason is there size increase so it's unfavorable to stability and other reason is increasing distance of valence electron from nucleus and francium is radioactive element so reactivity over all increase down the group,si reactivity order is francium,caesium,rubidium, potassium, sodium,lithium
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