Question

why is caesium a liquid?​

Answer 1

Answer:

Cesium (symbol Cs and atomic number 55), a soft metal that violently reacts with water, melts at 301.59 K. The low melting point and softness of francium and cesium are a consequence of the size of their atoms. ... Like cesium, rubidium reacts violently with water.

Answer 2

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Answer:

Cesium is silvery-gold, soft, ductile alkali metal. It is liquid in a warm room, melting at 28.4 oC (83.1 oF). Cesium is one of the few metals that is liquid near room temperature. The others are gallium, francium and mercury.

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