The radioisotope, tritium \[(_{1}^{3}H)\] has a half-life of 12.3 years. If the initial amount of tritium is 32 mg. How many milligrams of it would remain after 49.2 years [CBSE 2003]

The radioisotope, tritium \[(_{1}^{3}H)\] has a half-life of 12.3 year

1.	The radioisotope, tritium \[(_{1}^{3}H)\] has a half-life of 12.3 years. If the initial amount of tritium is 32 mg. How many milligrams of it would remain after 49.2 years [CBSE 2003]
A.	8 mg
B.	1 mg
C.	2 mg
D.	4 mg
Answer» D. 4 mg

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The radioisotope, tritium \[(_{1}^{3}H)\] has a half-life of 12.3 years. If the initial amount of tritium is 32 mg. How many milligrams of it would remain after 49.2 years [CBSE 2003]

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