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Posted by / 26-Jan-2018 23:19

Rechargeable lithium storage batteries that could be suitable for vehicle propulsion or energy storage are the subject of intensive research.Rubidium and cesium and their compounds have limited use, but cesium metal vapour is used in atomic clocks, which are so accurate that they are used as time standards.They proposed the name rubidium for the element in this solution from the Latin , which was used for the darkest red colour.Francium was not discovered until 1939 by Marguerite Perey of the Radium Institute in Paris.

The alkali metals react readily with atmospheric oxygen and water vapour.Each alkali metal atom has a single electron in its outermost shell.This valence electron is much more weakly bound than those in inner shells.An important use of lithium is in the construction of lightweight batteries.Primary lithium batteries (not rechargeable) are widely used in many devices such as cameras, cellular telephones, and pacemakers.

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