This reduces the ionic mobility which in turn reduces the speed of the molten metal. Picture of reaction: One pseudo-science programme on TV showed the reaction between water and the different group one alkali metals, namely lithium, sodium, potassium, rubidium and caesium. The most reactive metal, cesium, reacts with water to produce an explosive gas and a base. Balance it: 2Cs + 2 H2O --> 2CsOH + H2. the formula for water is simply H2O (two hydrogens, one oxygen). In each reaction, hydrogen gas is given off and the metal hydroxide is produced. Thermodynamic properties of substances The solubility of the substances Periodic table of elements. Caesium explodes on contact with water, quite possibly shattering the container. Actually, they faked the reaction of rubidium and caesium with water since they thought they were not spectacular enough for TV. The Group 1 metals become more reactive towards water as you go down the Group. Water pills (Diuretic drugs) interacts with CESIUM Large amounts of cesium can decrease potassium levels in the body. Rule: metal + water --> alkaline solution + H2: Cs + H2O --> CsOH + H2. Or perhaps the metal in the gif isn't pure cesium (but then other metals similar to cesium would still provide violent results). "Water pills" can also decrease potassium in the body. The formula for cesium is Cs, it is a simple element. Caesium hydroxide and hydrogen are formed. Caesium (cesium in USA) metal reacts rapidly with water to form a colourless solution of caesium hydroxide (CsOH) and hydrogen gas (H2). The reaction is very exothermic. Looking at the enthalpy changes for the reactions At least that's what they said. Water: H2O. Lithium just sizzles on top of the water (see Table 1 for densities). Caesium. Explaining the trend in reactivity. Hope this helps! 2Cs + 2H 2 O â 2CsOH + H 2 [ Check the balance ] Cesium react with water to produce cesium hydroxide and hydrogen. A base is a metallic hydroxide. Also, the hydrated radius of lithium is the greatest out of all alkali metals. - Duration: 0:24. The answer to âElemental cesium reacts more violently with water than does elemental sodium. The molten metal spreads over the water and exposes a larger surface to water. The resulting solution is basic because of the dissolved hydroxide. Find another reaction. Rubidium hydroxide (RbOH) solution and hydrogen gas are formed as results. Edited for clarity in what I meant: Perhaps the amount of cesium used in the gif is much smaller than that seen in the video, assuming similar volumes of water are used. Cesium react with water. Our channel. Reactions of alkali metals with water All the alkali metals react vigorously with cold water. 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