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Topic starter 29/01/2022 8:21 pm
Hi Why is barium or magnesium used as them, and not, say, lithium or other active metals?
29/01/2022 8:35 pm
It seems to me that this is due to the high activity and low work function of the electron, but I could be wrong
29/01/2022 10:45 pm
In the same place, in fact, a reaction with air gases is needed to absorb them.
