The half-life of iodine-124 is 4 days. A technician measures a 40-mCi sample of iodine-124. How many half-lives of iodine-124 occur in 16 days? How much iodine-124 is in the sample 16 days after the technician measures the original sample?
Accepted Solution
A:
Answer:The answer to your question is:a) 4 half-lifeb) 2.5 mCiStep-by-step explanation:Half-life of iodine 124 is 4 days# of half- lives in 16 days = ?Process 0 days ----------------- 0 half-life 4 days ------------------ 1 half life 8 days ------------------ 2 halves lives 12 days ----------------- 3 halves lives 16 days ----------------- 4 halves lives b) 40 mCi ---------------- initially 20 mCi ---------------- 1 half life 10 mCi ---------------- 2 half life 5 mCi ---------------- 3 half life 2.5 mCi ---------------- 4 half life