The most active and unusual metal on earth – cesium. Take a look at those experiments…
Cesium is an alkali metal which is located near the bottom of the periodic table of chemical elements. Only francium can be more active than cesium, but that metal is radioactive and only an insignificant Because of its high activity, metallic cesium is being stored in special ampoules under inert atmosphere of either argon or hydrogen. Appearance wise, cesium has a yellowish tint, like gold, but the price for cesium is still higher than gold. Due to the extremely small sales market and its highest activity, price of cesium can reach over 100 euros per gram!
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