A 24-gram sample of a radioactive nuclide decayed to 3.0 grams of the nuclide in 36 minutes. How much of the original nuclide sample remained after the first 12 minutes?

Question

asked Mar 24, 2017 130k views

1 Answer

← Prev Question Next Question →

Ask a Question

Ivan Nesterenko · Answer 1 · 2017-03-28T14:15:09+0000

The sample decreased to
(1)/(8)

of its original size, so it underwent
$\log_(2) 8=3$ half-lives.

One half life is then

$(36\ min)/(3)=12\ min$

One-half of 24 grams is 12 grams, so 12 grams remained after the first 12 minutes.

A 24-gram sample of a radioactive nuclide decayed to 3.0 grams of the nuclide in 36 minutes. How much of the original nuclide sample remained after the first 12 minutes?

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