Is mercury good in making battery

No, Mercury can actually cause poisoning. That is why other metals, such as Alkaline metals, are used in making batteries

Mercury can be found in most common household batteries but will most likely be discontinued in the future.

Explanation:

Zinc air, alkaline, and silver oxide button cell all include mercury but only in SMALL amounts. Chances of this mercury leaking are very unlikely and does not pose a large danger to people. In present day, most batteries are turning away from using mercury so its most likely mercury batteries will not be found in the future.

14 days is the half-life of phosphorus-32

58750.08068 is the answer i think