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cesium
This term refers to a specific chemical element characterized by extreme reactivity. In a laboratory or industrial setting, it is treated with high caution due to its tendency to ignite spontaneously in air or explode upon contact with water. It carries a connotation of scientific precision and volatility.
As a mass noun representing a chemical element, it is treated as uncountable. It does not have a plural form in standard chemical contexts; instead, quantities are specified using units of measurement such as grams or moles.
Meanings
Examples
Cesium is the most electropositive stable element in the periodic table.
The atomic clock uses the vibration of cesium atoms to keep time.
Be careful because cesium reacts violently when it touches water.
I wonder how cesium can be so reactive yet remain a stable element.
The scientist carefully handled the sample of pure cesium.
Cesium has a very low melting point compared to other metals.
We need to isolate the cesium from the solution using a specific reagent.
The precision of GPS depends on the frequency of cesium transitions.