How much of a radioactive kind of bismuth will be left after 40 min if the half life is 20 min and you start with 960 grams?

Question

asked Jun 10, 2017 142k views

1 Answer

← Prev Question Next Question →

Ask a Question

Maryam Homayouni · Answer 1 · 2017-06-15T12:54:53+0000

If the half life is 20 minutes, then in 40 minutes there is 2 half lives. At the end of Each half life, you will have 1/2 of the sample remaining. So...

After 20 min you have

960/2 = 480

After 40 minutes you will have

480/2 = 240 grams

How much of a radioactive kind of bismuth will be left after 40 min if the half life is 20 min and you start with 960 grams?

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

Please log in or register to add a comment.

Related questions

Categories

Other Questions