a radio active element has its half life 6 days.how much proton of that will disintegrated after 18 days
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Answer:Half life =6 hours
After 3 half lives, i.e., 18 hours, fraction of substance left =(
2
1
)
3
=
8
1
Fraction undergone decay =1−
8
1
=
8
7
Amount of decayed substance =
8
7
×36gms=31.5gms
Explanation:
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