Among the alkali metals, cesium is the most reactive because

Question

Among the alkali metals, cesium is the most reactive because (A) its incomplete shell is nearest to the nucleus (B) its has a single electron in the valence shell (C) it is the heaviest alkali metal (D) the outermost electron is more loosely bound than the outermost electron of the other alkali metals

Tardigrade Admin · Accepted Answer

The outermost shell electron of cesium is more loosely bound than the outermost shell electron of the other alkali metals thats why cesium is most reactive among the alkali metals.

Q. Among the alkali metals, cesium is the most reactive because

its incomplete shell is nearest to the nucleus

its has a single electron in the valence shell

it is the heaviest alkali metal

the outermost electron is more loosely bound than the outermost electron of the other alkali metals

The outermost shell electron of cesium is more loosely bound than the outermost shell electron of the other alkali metals thats why cesium is most reactive among the alkali metals.