Protactinium-234 has a half-life of 1 minute. How much of a 400. g sample protactinium would remain after 4 minutes

Name: Protactinium-234 has a half-life of 1 minute. How much of a 400. g sample protactinium would remain after 4 minutes
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Question

Quizplus · Accepted Answer

Protactinium-234 undergoes four half-lives in 4 minutes (since each half-life is 1 minute). After each half-life, the amount remaining is halved: 400 g → 200 g → 100 g → 50 g → 25 g.

Protactinium-234 Has a Half-Life of 1 Minute