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alkali metals click to hear : alkali metals

Generally soft and silvery and very good conductors of heat and electricity; they are very reactant with nonmetals and break down in cold water.
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See alkali metals in : french | spanish
francium cesium rubidium potassium sodium lithium

francium click to hear : francium

The heaviest of the alkali metals is very rare and radioactive and has a very short life span (about 22 minutes).

cesium click to hear : cesium

Rare metal that is used especially in photoelectric cells, atomic clocks, infrared lamps and treating certain cancers.

rubidium click to hear : rubidium

Metal similar to potassium but much rarer that is used in the manufacture of photoelectric cells and special kinds of glass and lasers.

potassium click to hear : potassium

Very reactant light metal that is used especially in fertilizer and matches; its salts are used in medicine.

sodium click to hear : sodium

Metal that is used especially in streetlights, kitchen salt (sodium chloride) and the manufacture of glass and cosmetic products.

lithium click to hear : lithium

The lightest of all the metals is used especially in alloys for the aerospace industry, in household batteries and in medicine.