99% of a radioactive element will decay between [AMU (Engg.) 2001] – McqOptions

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1.	99% of a radioactive element will decay between [AMU (Engg.) 2001]
A.	6 and 7 half lives
B.	7 and 8 half lives
C.	8 and 9 half lives
D.	9 half lives
Answer» B. 7 and 8 half lives

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