ครึ่งชีวิต
Presentation
•
Chemistry
•
7th Grade
•
Easy
นุสรา สมเขาใหญ่
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30 Slides • 1 Question
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Multiple Choice
จงหาปริมาณ I - 131 เริ่มต้น เมื่อนำ I - 131 จำนวนหนึ่งมาวางไว้เป็นเวลา 40.5 วัน ปรากฏว่ามีมวลเหลือ 0.125 กรัม ครึ่งชีวิตของ I -131 เท่ากับ 8.1 วัน
0.5 กรัม
4 กรัม
40 กรัม
50 กรัม
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