Thank you for reporting, we will resolve it shortly
Q.
Among the alkali metals cesium is the most reactive because
Jharkhand CECEJharkhand CECE 2009
Solution:
Alkali metals have a tendency to lose the single valence electron and form positive ions and gain inert gas configuration but in case of cesium, the distance of the valence electron is maximum. So, force of attraction by the nucleus is least, hence it is more reactive.