alkali metal betydelse and definition

Exempel på alkali metal

• These sources work by applying a layer of alkali metal atoms on a low work function substrate, usually tungsten.

• The technique coats a tungsten plug with aluminosilicate doped with an alkali metal, which is then sintered onto the tungsten.

• These alkali metal heat pipes transferred heat from the heat source to a thermionic or thermoelectric converter to generate electricity.

• From this acid other alkali metal salts can be prepared.

• Saltiness and sourness are perceived when alkali metal or hydrogen ions enter taste buds, respectively.

• As a hydride of an alkali metal, it is reactive towards even weak oxidizing agents.

• The alkali metal peroxides and superoxides are powerful oxidizing agents.

• This natural radioactivity became a basis for a mistaken claim of the discovery for element 87 (the next alkali metal after caesium) in 1925.