Answer:
The correct answer would be = 0.1593 mCi.
Explanation:
The initial 123I = 2.55 mCi (given)
We know that the half-life of radioactive I-123 = 12 hours approximately.
So, we can say that in 48 hours there will be four half-lives of 123I,
Hence after four half-life or 48 hours, the final 123I would be:
= 2.55 * (1/2⁴)
= 2.55 * (1/16)
= 0.1593 mCi
Thus, the correct answer would be = 0.1593 mCi.
Answer:
C
Explanation:
sorry if its wrong but i think its right
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The scientific method has five basic steps, plus one feedback step: Make an observation. Ask a question. Form a hypothesis, or testable explanation.