CH1012
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4
GROUP 1A & 2A USES
Alkali Metals
Li - Li ion batteries, aerospace Li/Mg/Al
Na - nuclear reactors, production Zr,Ti..
K - KO2 in breathing packs.
Cs - radiotherapy, 137Cs - radionuclide
 Alkaline Earth Metals
Be - aerospace alloys Be/Ni/Cu
Mg - lightweight alloys “Mag” wheels Mg/Al
Ca - Pb acid electrodes, production Cr
Sr - scavenger of O2 & N2 in electronics