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a radio active element has its half life 6 days.how much proton of that will disintegrated after 18 days​

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=31.5gmsExplanation:



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