The half-life of a radioactive isotope is 5.5 h. If there are initiall – McqOptions

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1.	The half-life of a radioactive isotope is 5.5 h. If there are initially 48 × 1032 atoms of this isotope, the number of atoms of the isotope remaining after 22 h is:
A.	3 × 1032
B.	6 × 1032
C.	12 × 1032
D.	6 × 104
Answer» B. 6 × 1032

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