L1 /
4
CH1012
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