Question

what are the practical uses of radon
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Answer 1

Radon was used in some hospitals to treat tumours by sealing the gas in minute tubes, and implanting these into the tumour, treating the disease in situ.
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Answer 2

hey mate!

here's your answer:

Actually, Radon was commonly used in some hospitals to treat tumours by sealing the gas in minute tubes also

implanting these into the tumour

treating the disease.

Other, safer treatments are now more commonly used.

i hope it will helps you

please mark my answer as brainlist